Full Syllabus Test # 9 (Final Dash) (Old NCERT)

Biology I - Section A

1. Which one of the following statements is true?

1.	Exine of pollen grains is made up of cellulose and pectin
2.	Pollen grains of many species cause severe allergies
3.	Pollens cannot be stored in liquid nitrogen
4.	Tapetum helps in the dehiscence of anther

2. When the centromere is located close to the end of a chromosome, the chromosome is known as:

1.	Sub-metacentric	2.	Acrocentric
3.	Metacentric	4.	Telocentric

3. What is the role of RNA polymerase II in the process of transcription in eukaryotes?
1. Transcribes precursor of mRNA
2. Transcribes only snRNAs
3. Transcribes rRNAs (28S, 18S and 5.8S)
4. Transcribes tRNA, 5s rRNA and snRNA

4. Nomenclature is governed by certain universal rules. Which one of the following is not contrary to the rules of nomenclature?

1.	The ﬁrst word in a biological name represents the specific epithet and the second is a genus name.
2.	The names are derived from Greek and written in italics.
3.	When written by hand, the names are to be separately underlined.
4.	Biological names can be written in any language.

5. In the taxonomic categories which hierarchical arrangement in descending order in correct in case of animals?

1.	Kingdom, Order, Phylum, Class, Family, Genus, Species
2.	Kingdom, Phylum, Class, Order, Family, Genus, Species
3.	Kingdom, Class, Phylum, Family, Order, Genus, Species
4.	Kingdom, Order, Class, Phylum, Family, Genus, Species

6. Which of the following bacteria is capable of oxidising nitrite to nitrate?
1. Nitrobacter
2. Thiobacillus
3. Nitrococcus
4. Nitrosomonas

7. Vegetative propagule in water hyacinth is:
1. Rhizome
2. Bulbil
3. Offset
4. Eye

8. The total number of ATP molecules produced when each molecule of glucose is converted to two molecules of pyruvic acid is:

1.	Eight	2.	Four
3.	Six	4.	Two

9. Which of the following shows opposite phyllotaxy?

1.	Mustard	2.	China rose
3.	Alstonia	4.	Calotropis

10. Which of the following growth regulators is a carotenoid derivative?

1.	Auxin	2.	Cytokinin
3.	Ethylene	4.	Abscisic acid

11. In plants:
I. Iron is required for chlorophyll biosynthesis
II. Zinc is required for IAA biosynthesis
III: Boron is required for pollen germination
IV. Manganese is required for photolysis of water
1. Only I, II and III are correct
2. Only I, III and IV are correct
3. Only II, III and IV are correct
4. I, II, III and IV are correct

12. Which of the following physical properties of water is/are responsible for providing water, the high tensile strength and high capillarity during ascent of sap in the plants?
1. Surface tension and cohesion
2. Cohesion, adhesion and surface tension
3. Cohesion only
4. Adhesion and cohesion

13. Which of the following statement is correct?

1.	Ovules are enclosed by ovary wall in gymnosperms
2.	Selaginella is heterosporous, while Salvinia is homosporous
3.	Pteridophytes are the first terrestrial plants to possess xylem and phloem.
4.	Stems are usually unbranched in both Cycas and Pinus

14. After karyogamy followed by meiosis, spores are produced endogenously in:

1.	Neurospora	2.	Alternaria
3.	Agaricus	4.	Colletotrichum

15. Concanavalin A is:

1.	a primary metabolite in living organism and an alkaloid
2.	a primary metabolite in living organism and a lectin
3.	a secondary metabolite in living organism and a lectin
4.	a secondary metabolite in living organism and an alkaloid

16. Conversion of sucrose into glucose and fructose is catalyzed by:

1.	Phosphofructokinase	2.	Aldolase
3.	Hexokinase	4.	Invertase

17. In general, the embryo sac in angiosperm consists of:

1.	One egg cell, two synergids, three antipodal cells, two Polar nuclei
2.	One egg cell, two synergids, two antipodal cells, three Polar nuclei
3.	One egg cell, three synergids, two antipodal cells, two Polar nuclei
4.	One egg cell, two synergids, two antipodal cells, two Polar nuclei

18. Identify the incorrect statement:

1.	The template strand in a transcription unit is copied to an mRNA.
2.	Split gene arrangement is characteristic of prokaryotes.
3.	In capping, methylguanosine triphosphate is added to the 5' end of hnRNA.
4.	RNA polymerase binds with the Rho factor to terminate the process of transcription in bacteria.

19. Consider the given two statements:

Statement I:	Vertical distribution of different species occupying different levels in an ecosystem is called standing state.
Statement II:	In an ecosystem, each trophic level has a certain mass of living material at a particular time called as the standing crop.

1.	Statement I is correct; Statement II is incorrect
2.	Statement I is correct; Statement II is correct
3.	Statement I is incorrect; Statement II is incorrect
4.	Statement I is incorrect; Statement II is correct

20. Which of the following is put into anaerobic sludge digester for further sewage treatment?
1. Floating debris
2. Efﬂuents of primary treatment
3. Activated sludge
4. Primary sludge

21. Identify the incorrect statement.

1.	Sapwood is involved in conduction of water and minerals from root to leafs.
2.	Sapwood is the innermost secondary xylem and is lighter in colour
3.	Due to deposition of tannins, resins, oils etc., heart wood is dark in colour.
4.	Heart wood does not conduct water but gives mechanical support.

22. Which of the following statements about cork cambium is/are correct?

I:	It usually develops in the cortex region and is a couple of layers thick.
II:	It cuts off cells on both sides where the inner cells differentiate into cork and the outer cells differentiate into secondary cortex.

1. Only I
2. Only II
3. Both I and II
4. Neither I nor II

23. Consider the given two statements:

Statement I:	The Earth Summit held in Rio de Janeiro in 1992 was called for the conservation of biodiversity and sustainable utilization of its beneﬁts.
Statement II:	The World Summit on sustainable development held in 2002 in Johannesburg, South Africa pledged for a significant reduction in the current rate of biodiversity loss at global, regional and local levels by 2010.

1. Statement I is correct; Statement II is incorrect
2. Statement I is correct; Statement II is correct
3. Statement I is incorrect; Statement II is incorrect
4. Statement I is incorrect; Statement II is correct

24. Identify the correct statement related to Pollination:

1.	Water is the most important pollinating agent for angiosperms
2.	Pollination by water is seen in all aquatic ﬂowering plants
3.	Pollination by wind is more common amongst abiotic pollination
4.	Very few flowers are pollinated by insects

25. When a carrier protein facilitates the movement of two molecules across the membrane in opposite direction, it is called :
1. Uniport
2. Transport
3. Antiport
4. Symport

26. Which of the following was proved by girdling experiment?

1.	Apoplastic movement of water occurs through intercellular spaces
2.	Symplastic movement of water occurs through interconnected protoplast
3.	Xylem is responsible for uptake of water
4.	Phloem is responsible for translocation of food

27. Regeneration of which of the following is an important role of fermentation in cellular respiration:
1. NADH
2. NADP⁺
3. NAD⁺
4. NADPH

28. Correct position of ﬂoral parts over thalamus in the guava plant is:

1.	Gynoecium occupies the highest position, while the other parts are situated below it.
2.	Margin of the thalamus grows upward, enclosing the ovary completely, and other parts arise above the ovary.
3.	Gynoecium is present in the center and other parts cover it partially.
4.	Gynoecium is situated in the center, and other parts of the ﬂower are located at the rim of the thalamus, at the same level.

29. Who coined the term linkage to describe physical association of genes on a chromosome?
1. Sutton and Boveri
2. Bateson and Punnet
3. T. H. Morgan
4. Watson and Crick

30. Identify the microorganism which is responsible for the commercial production of citric acid:

1.	Streptococcus cerevisiae	2.	Trichoderma polysporum
3.	Clostridium butylicum	4.	Aspergillus niger

31. Bicarpellary ovary with obliquely placed septum is seen in:

1.	Brassica	2.	Aloe
3.	Solanum	4.	Sesbania

32. Given below are two statements:

Statement I:	The primary CO₂ acceptor in C₄ plants is oxaloacetate and is found in the mesophyll cells
Statement II:	Mesophyll cells in C₄ plants carry out Calvin cycle.

In the light of the above statements, choose the correct answer from the options given below :

1.	Statement I is incorrect but Statement II is correct
2.	Both Statement I and Statement II are correct
3.	Both Statement I and Statement II are incorrect
4.	Statement I is correct but Statement II is incorrect

33. Life cycles of Polysiphonia and Fucus respectively are:
1. Diplontic, Haplodiplontic
2. Haplodiplontic, Diplontic
3. Haplodiplontic, Haplontic
4. Haplontic, Diplontic

34. Fucoxanthin is an important pigment in:
1. Red algae
2. Blue-green algae
3. Green algae
4. Brown algae

35. In Abelmoschus esculentus, resistance to yellow mosaic virus was brought about by:
1. Mutation breeding
2. Biofortiﬁcation
3. Tissue culture
4. Hybridization and selection

Biology I - Section B

36. Plants which produce characteristic pneumatophores and show vivipary belong to:

1.	Halophytes	2.	Psammophytes
3.	Hydrophytes	4.	Mesophytes

37. What is the expected percentage of F₂ progeny with yellow and inﬂated pod in dihybrid cross experiment involving pea plants with green coloured, inﬂated pod and yellow coloured constricted pod?
1. 100%
2. 56.25%
3. 18.75 %
4. 9%

38. Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A):	Mendel's law of independent assortment holds good for genes that are located closely on the same chromosome.
Reason (R):	Closely located genes assort independently.

In the light of the above statements, choose the correct answer from the options given below:

1.	(A) is not correct and (R) is not correct
2.	Both (A) and (R) are correct and (R) is the correct explanation of (A)
3.	Both (A) and (R) are correct but (R) is not the correct explanation of (A)
4.	(A) is correct and (R) is not correct

39. The onion root tip cell has 16 chromosomes (2n). What would be the number of chromosomes in this cell after the S phase and at the end of mitotic anaphase, respectively?

1.	16 and 16	2.	16 and 32
3.	8 and 16	4.	16 and 8

40. Read the following statements and choose the set of incorrect statements:

(a)	Euchromatin is loosely packed chromatin
(b)	Heterochromatin is transcriptionally active
(c)	Histone octamer is wrapped by negatively charged DNA in nucleosome
(d)	Histones are rich in lysine and arginine
(e)	A typical nucleosome contains 400 bp of DNA helix

Choose the correct answer from the options given below
1. (a), (c), (e) only
2. (b), (d), (e) only
3. (a), (c), (d) only
4. (b), (e) only

41. Given below are two statements:

Statement I:	Membrane-bound organelles of the endomembrane system coordinate cellular functions.
Statement II:	Mitochondria and chloroplasts are not considered a part of the endomembrane system.

In the light of the above statements, choose the most appropriate answer from the options given below

1.	Statement I is correct but Statement II is incorrect
2.	Statement I is incorrect but Statement II is correct
3.	Both Statement I and Statement II are correct
4.	Both Statement I and Statement II are incorrect

42. Identify the correct set of statements:

(a)	The leaﬂets are modiﬁed into pointed hard thorns in Citrus and Bougainvillea
(b)	Axillary buds form slender and spirally coiled tendrils in cucumber and pumpkin
(c)	Stem is ﬂattened and ﬂeshy in Opuntia and modiﬁed to perform the function of leaves
(d)	Rhizophora shows vertically upward growing roots that help to get oxygen for respiration
(e)	Subaerially growing stems in grasses and strawberry help in vegetative propagation

Choose the correct answer from the options given below:
1. (a), (b), (d), and (e) only
2. (b), (c) only
3. (a), (d) only
4. (b), (c), (d) and (e) only

43. Both autogamy and geitonogamy are prevented in:
1. Monoecy
2. Dioecy
3. Chasmogamy
4. Cleistogamy

44. The practice of commercially exploiting naturally occurring biochemical or genetic material, especially by obtaining patents that restrict its future use, while failing to pay fair compensation to the community from which it originates, is called as:
1. Biopiracy
2. Bioenergetics
3. Bioremediation
4. Bioprospecting

45. Given below are two statements:

Statement I:	The phenomenon by which the undividing parenchyma cells start to divide mitotically during plant tissue culture is called as dedifferentiation.
Statement II:	The ability of plants to follow different pathways in response to environment leading to formation of different kinds of structures is called plasticity.

In the light of the above statements, choose the most appropriate answer from the options given below

1.	Statement I is correct but Statement II is incorrect
2.	Statement I is incorrect but Statement II is correct
3.	Both Statement I and Statement II are correct
4.	Both Statement I and Statement II are incorrect

46. Identify the correct statements regarding chemiosmotic hypothesis:

(a)	Splitting of the water molecule takes place on the inner side of the membrane.
(b)	Protons accumulate within the lumen of the thylakoids.
(c)	Primary acceptor of electron transfers the electrons to an electron carrier.
(d)	NADP reductase enzyme is located on the stroma side of the membrane.
(e)	Protons increase in number in stroma.

Choose the correct answer from the options given below:
1. (a), (b) and (e)
2. (a), (b) and (d)
3. (b), (c) and (d)
4. (b), (c) and (e)

47. Which of the following are correct regarding decomposition of wastes?

(a)	Low temperature inhibits decomposition
(b)	Warm and moist environment favours the process
(c)	The process is anaerobic
(d)	It is slower if detritus is rich in nitrogen and water-soluble substances like sugars
(e)	Detritus is degraded into simpler inorganic substance by fungal and bacterial enzymes

Choose the correct answer from the options given below:
1. (b) and (c) only
2. (c) (a) and (d) only
3. (c) and (d) only
4. (a) (b) and (e) only

48. Identify the correctly matched pairs regarding anatomy of a dicot root:

I:	Epiblema	Many of the cells of epiblema protrude in the form of unicellular root hairs.
II:	Endodermis	The tangential as well as radial walls of the cells have a deposition of suberin in the form of casparian strips.
III:	Pericycle	Initiation of lateral roots and vascular cambium during the secondary growth takes place in these cells
IV:	Pith	Large and well developed.

1. Only II and III
2. Only I, II and III
3. Only I, III and IV
4. Only II, III and IV

49. What will be the ploidy of endosperm of a seed produced after crossing tetraploid female plant with tetraploid male plant?
1. Pentaploid
2. Hexaploid
3. Diploid
4. Triploid

50. Plasmid pBR322 has a PstI restriction enzyme site within gene ampR that confers ampicillin resistance. If this enzyme is used for inserting a gene for β galactoside production and the recombinant plasmid is inserted in an E.coli strain:

1.	it will lead to the lysis of host cells.
2.	it will be able to produce a novel protein with dual abilities.
3.	it will not be able to confer ampicillin resistance to the host cell.
4.	the transformed cells will have the ability to resist ampicillin as well as produce β-galactoside.

Biology II - Section A

51. Select the correct statement regarding synapses:

1.	Impulse Transmission across a chemical synapse is always faster than that across an electrical synapse.
2.	The membranes of presynaptic and postsynaptic neurons are in close proximity in an electrical synapse.
3.	Electrical synapses are easier to regulate than the chemical synapses.
4.	Chemical synapses do not use neurotransmitters

52. Which of the following statements are NOT true for the phylum-Chordata?

(a)	In Urochordata, notochord extends from head to tail and is present throughout their life
(b)	In Cephalochordata, notochord is present only in larval tail
(c)	Central nervous system is dorsal and hollow
(d)	Anus is terminal
(e)	Heart, if present, is ventral

1. Only (c) and (d)
2. Only (a) and (b)
3. Only (b) and (e)
4. Only (c) and (e)

53. Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R)

Assertion (A):	All vertebrates are chordates but all chordates are not vertebrates
Reason (R):	Notochord is replaced by vertebral column in the adult vertebrates

In the light of the above statements, choose the most appropriate answer from the options given below:

1.	(A) is not correct but (R) is correct
2.	Both (A) and (R) are correct and (R) is the correct explanation of (A)
3.	Both (A) and (R) are correct but (R) is not the correct explanation of (A)
4.	(A) is correct but (R) is not correct

54. Which one of the following belongs to the family Muscidae?
1. Cockroach
2. House ﬂy
3. Fire ﬂy
4. Grasshopper

55. Identify the incorrect statement:

1.	The descending limb of loop of Henle is permeable to water.
2.	The ascending limb of loop of Henle is impermeable to water.
3.	The descending limb of loop of Henle is freely permeable to electrolytes.
4.	The ascending limb of loop of Henle is permeable to electrolytes.

56. Osteoporosis is a type of disorder which leads to:

1.	Inﬂammation of joints due to accumulation of uric acid crystals
2.	Weakening of bones due to decreased bone mass
3.	Inﬂammation of joints due to cartilage degeneration
4.	Weakening of bones due to low calcium level

57. Thalassemia and sickle cell anaemia are caused due to a problem in globin molecule synthesis. Select the correct statement:

1.	both are due to a quantitative defect in globin chain synthesis
2.	Thalassemia is due to less synthesis of globin molecules
3.	Sickle cell anemia is due to a quantitative problem of globin molecules
4.	Both are due to a qualitative defect in globin chain synthesis

58. A gene locus has two alleles A, a. If the frequency of dominant allele A is 0.3, then what will be the frequency of homozygous dominant individuals in the population?

1.	0.7	2.	0.09
3.	0.42	4.	0.49

59. Consider the given statements:

Statement I:	The most important cause today for animals and plants being driven to extinction is over-exploitation by human beings.
Statement II:	Conserving biodiversity hotspots is an Ex-situ method of conservation of threatened animals and plants.

1.	Statement I is correct; Statement II is incorrect
2.	Statement I is correct; Statement II is correct
3.	Statement I is incorrect; Statement II is incorrect
4.	Statement I is incorrect; Statement II is correct

60. Regarding type of epithelium:

I:	The bronchioles and fallopian tubes are lined with ciliated epithelium
II:	The alveoli are lined with stratified squamous epithelium.

1.	Only I is correct
2.	Only II is correct
3.	Both I and II are correct
4.	Both I and II are incorrect

61. Under normal physiological conditions in humans, the amount of O₂ every 100 ml of oxygenated blood can deliver to the tissues and the amount of CO₂ every 100 ml of oxygenated blood can deliver to the alveoli, respectively, will be:
1. 15 ml and 20 ml
2. 5 ml and 4 ml
3. 4 ml and 5 ml
4. 20 ml and 15 ml

62. The correct order of steps in Polymerase Chain Reaction (PCR) is
1. Extension, Denaturation, Annealing
2. Annealing, Extension, Denaturation
3. Denaturation, Extension, Annealing
4. Denaturation, Annealing, Extension

63. Which of the following hormones are NOT secreted in women only during pregnancy?
(a) Relaxin
(b) Oxytocin
(c) hCG
(d) hPL
(e) Progesterone
Choose the most appropriate answer from the options given below:
1. (c), (d) and (e) only
2. (b) and (e) only
3. (b), (c) and (d) only
4. (a), (c) and (d) only

64. Which of the following events is usually not seen in a standard ECG?
1. Depolarisation of atria
2. Depolarisation of ventricles
3. Repolarisation of ventricles
4. Repolarisation of atria

65. Regarding Endoplasmic reticulum in a eukaryotic cell:

I:	SER are the sites for lipid synthesis
II:	RER has ribosomes attached to ER
III:	In prokaryotes, only RER are present

1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct

66. What would be the number hybrid density DNA molecules, if Meselson and Stahl's experiment was continued for 60 minutes?
1. 2
2. 4
3. 6
4. 8

67. Darwin Finches are an excellent example of:
1. Adaptive radiation
2. Sewall Wright effect
3. Saltation
4. Stabilising natural selection

68. Choose the correct statement about a muscular tissue:

1.	Skeletal muscle ﬁbres are uninucleated and found in parallel bundles.
2.	Intercalated discs allow the skeletal muscle cells to contract as a unit.
3.	Skeletal muscles are striated and voluntary.
4.	Smooth muscles are multinucleated and involuntary

69. A river with an inﬂow of domestic sewage rich in organic waste may result in:

1.	increased population of aquatic food web organisms
2.	an increased production of ﬁsh due to biodegradable nutrients
3.	death of ﬁsh due to lack of oxygen
4.	drying of the river very soon due to algal bloom

70. Select the incorrect statement:

1.	Expiration occurs due to contraction of internal intercostal muscles.
2.	Intrapulmonary pressure is lower than atmospheric pressure during inspiration.
3.	The contraction of diaphragm increases the volume of the thoracic chamber in dorso-ventral axis.
4.	Inspiration is initiated due to the contraction of the diaphragm.

71. Identify the correct sequence of events during Prophase I of meiosis:

(a)	Synapsis of homologous chromosomes
(b)	Chromosomes become gradually visible under microscope
(c)	Crossing over between non-sister chromatids of homologous chromosomes
(d)	Terminalisation of chiasmata
(e)	Dissolution of synaptonemal complex

Choose the correct answer from the options given below:
1. (a), (b), (c), (d), (e)
2. (b), (c), (d), (e), (a)
3. (b), (a), (c), (e), (d)
4. (a), (c), (d), (e), (b)

72. The parietal cell in the lining of gastric mucosa secrete:
I: HCl
II: Intrinsic factor
1. Only I
2. Only II
3. Both I and II
4. Neither I nor II

73. Which of the following is an example of mutualism?
1. Cuckoo laying eggs in nest of a crow
2. Cattle Egret and grazing cattle
3. Sea Anemone and Clownﬁsh
4. Female wasp and ﬁg species

74. The yellowish ﬂuid "colostrum" secreted by mammary glands of the mother during the initial days of lactation has abundant antibodies to protect the infant. The antibodies present belong to the class:

1.	IgA	2.	IgG
3.	IgE	4.	IgM

75. Match List - I with List – II:

	List – I		List – II
(a)	Metamerism	(i)	Ctenophora
(b)	Canal system	(ii)	Cnidaria
(c)	Comb Plates	(iii)	Annelida
(d)	Metagenesis	(iv)	Porifera

Choose the correct answer from the options given below.

	(a)	(b)	(c)	(d)
1.	(iii)	(iv)	(ii)	(i)
2.	(iv)	(i)	(ii)	(iii)
3.	(iv)	(iii)	(i)	(ii)
4.	(iii)	(iv)	(i)	(ii)

76. In lac operon, lac y gene codes for:
1. β−galactosidase
2. Permease
3. Repressor
4. Transacetylase

77. The contraceptive 'SAHELI':

1.	is a non-steroidal oral contraceptive pill.
2.	increases the concentration of estrogen and prevents ovulation in females
3.	is an lUD
4.	is a post-coital contraceptive

78. Which of the following is a hormone releasing Intra Uterine Device?

1.	DMPA	2.	Multiload 375
3.	Lippes loop	4.	Progestasert

79. A molecule that can act as a genetic material must fulﬁll the traits given below, except:

1.	it should be able to express itself in the form of 'Mendelian characters'
2.	it should be able to generate its replica
3.	it should be unstable structurally and chemically
4.	it should provide the scope for slow changes that are required for evolution

80. Which of the following are the effects of parathyroid hormone?

(a)	Stimulates the process of bone resorption
(b)	Decreases Ca²⁺ level in blood
(c)	Reabsorption of Ca²⁺ by renal tubules
(d)	Decreases the absorption of Ca²⁺ from digested food
(e)	Increases metabolism of carbohydrates

Choose the most appropriate answer from the options given below:
1. (b) and (c) only
2. (a) and (c) only
3. (b), (d) and (e) only
4. (a) and (e) only

81. Which of the following statements is true?

1.	Flippers of penguins and dolphins are a pair of homologous organs
2.	Analogous structures are a result of divergent evolution
3.	Sweet potato and potato is an example of homology
4.	Homology indicates common ancestry

82. Select the incorrect statement.
1. Glucagon is associated with hyperglycemia.
2. Insulin acts on hepatocytes and adipocytes.
3. Adrenaline will cause a decrease in blood sugar level.
4. Glucocorticoids stimulate gluconeogenesis.

83. Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A):	With the help of several ommatidia, a cockroach can perceive several images of an object, i.e., mosaic vision
Reason (R):	Mosaic vision gives less sensitivity but more resolution

In the light of the above statements, choose the most appropriate answer from the options given below:

1.	(A) is correct but (R) is not correct
2.	(A) is not correct but (R) is correct
3.	Both (A) and (R) are correct and (R) is the correct explanation of (A)
4.	Both (A) and (R) are correct but (R) is not the correct explanation of (A)

84. Study the four statements (I-IV) given below and select the two correct ones out of them:

I.	Deﬁnition of biological species was given by Ernst Mayr.
II.	Photoperiod does not affect reproduction in plants.
III.	Binomial nomenclature system was given by RH Whittaker.
IV.	In unicellular organisms, reproduction is synonymous with growth.

The two correct statements are:
1. II and I
2. III and IV
3. I and IV
4. I and II

85. Which of the following structures or regions is incorrectly paired with its function?

1.	Medulla oblongata: controls respiration and cardiovascular reﬂexes.
2.	Limbic system: consists of ﬁbre tracts that interconnect different regions of brain; controls movement.
3.	Hypothalamus: production of releasing hormones and regulation of temperature, hunger and thirst.
4.	Corpus callosum: band of ﬁbers connecting left and right cerebral hemispheres

Biology II - Section B

86. Which of the following statements is not true for cancer cells in relation to mutations?

1.	Mutations destroy telomerase inhibitor
2.	Mutations inactivate the cell control
3.	Mutations inhibit production of telomerase
4.	Mutations in proto-oncogenes accelerate the cell cycle

87. Give below are two statements:

Statement I:	When an infected female Anopheles mosquito bites, it releases gametocytes of plasmodium into the healthy person.
Statement II:	The female Anopheles mosquito takes up sporozoites of Plasmodium with blood meal from an infected person, suffering from malaria.

In the light of the above statements, choose the most appropriate answer from the options give below:

1.	Statement I is correct but Statement II is incorrect
2.	Statement I is incorrect but Statement II is correct
3.	Both Statement I and Statement II are correct
4.	Both Statement I and Statement II are incorrect

88. Regarding methodologies used in sequencing human genome:

I:	Identifying all the genes that are expressed as RNA is referred to as Expressed Sequence Tags.
II:	The blind approach of simply sequencing the whole set of genome that contained all the coding and non-coding sequence, and later assigning different regions in the sequence with functions is referred to as Sequence Annotation.

1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect

89. Select the incorrect statement with respect to inbreeding of animals.
1. It is used for evolving pure lines in cattle.
2. It helps in accumulation of superior genes and elimination of less desirable genes.
3. It decreases homozygosity.
4. It exposes harmful recessive genes that are eliminated by selection

90. The 'Inheritance of blood groups' in humans is not an example of:

(a)	Dominance
(b)	Co-dominance
(c)	Multiple allelism
(d)	Incomplete dominance
(e)	Polygenic inheritance

1. (a) and (b) only
2. (c), (d) and (e) only
3. (d) and (e) only
4. (b), (c) and (d) only

91. Polysaccharides can be cleaved into constituent monosaccharides by hydrolysis. How many water molecules will be needed to cleave a polysaccharide, containing 100 monosaccharides, completely?

1.	99	2.	100
3.	101	4.	51

92. Which of the following is correct for r-selected species?
1. Large number of progeny with small size
2. Large number of progeny with large size
3. Small number of progeny with small size
4. Small number of progeny with large size

93. Identify the correct statement on 'inhibin':

1.	Is produced by granulosa cells in ovary and inhibits the secretion of FSH
2.	Is produced by granulosa cells in ovary and inhibits the secretion of LH
3.	Is produced by nurse cells in testes and inhibits the secretion of LH
4.	Inhibits the secretion of LH, FSH and prolactin.

94. A normal girl, whose mother is haemophilic marries a male with no ancestral history of haemophilia. What will be the possible phenotypes of the offsprings?

(a)	Haemophilic son and haemophilic daughter.
(b)	Haemophilic son and carrier daughter.
(c)	Normal daughter and normal son.
(d)	Normal son and haemophilic daughter.

Choose the most appropriate answer from the options given below :
1. (a) and (b) only
2. (b) and (c) only
3. (a) and (d) only
4. (b) and (d) only

95. Statements related to human Insulin are given below. Which statement(s) is/are correct about genetically engineered Insulin?

(a)	Pro-hormone insulin contains extra stretch of C- peptide
(b)	A-peptide and B-peptide chains of insulin were produced separately in E.coli, extracted and combined by creating disulphide bond between them.
(c)	Insulin used for treating Diabetes was extracted from Cattles and Pigs.
(d)	Pro-hormone Insulin needs to be processed for converting into a mature and functional hormone.
(e)	Some patients develop allergic reactions to the foreign insulin.

Choose the most appropriate answer from the options given below:

1.	(c), (d) and (e) only	2.	(a), (b) and (d) only
3.	(b) only	4.	(c) and (d) only

96. Given below are four statements pertaining to the separation of DNA fragments using Gel electrophoresis. Identify the correct statements:

(a)	DNA fragments are negatively charged molecules and can be separated by forcing them to move towards the anode under an electric field through a medium/matrix.
(b)	The separation of DNA fragments is possible because they differ in size.
(c)	Smaller the size of the DNA fragment, shorter the distance it travels through agarose gel.
(d)	Pure DNA can be visualized directly by exposing it to UV radiation without any staining.

Choose the correct answer from the options given below:
1. Only (c) and (d)
2. Only (a) and (c)
3. Only (b) and (c)
4. Only (a) and (b)

97. Genetic Drift operates in:
1. small isolated population
2. large isolated population
3. non-reproductive population
4. slow reproductive population

98. Select the incorrect statements.

(a)	Angiotensin II activates the cortex of adrenal gland to release aldosterone.
(b)	Aldosterone leads to increase in blood pressure.
(c)	ANF acts synergistically with renin-angiotensin mechanism.
(d)	ADH causes vasodilation.
(e)	Vasopressin is released from adenohypophysis.

Choose the most appropriate answer from the options given below :
1. (a), (b) and (e) only
2. (c), (d) and (e) only
3. (b), (c) and (d) only
4. (a), (b) and (c) only

99. Which of the following is the only floating national park in the world?
1. Keibul Lamjao National Park, Manipur
2. Bandhavgarh National Park, Madhya Pradesh
3. Eaglenest Wildlife Sanctuary.
4. Dachigam National Park, Jammu and Kashmir

100. A specialised nodal tissue embedded in the lower corner of the right atrium, close to Atrio-ventricular septum, delays the spreading of impulses to heart apex for about 0.1 sec. This delay allows:
1. blood to enter aorta.
2. the ventricles to empty completely.
3. blood to enter pulmonary arteries.
4. the atria to empty completely.

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