In the given diagram, which numbers depict Cystic duct [CD], Hepatic duct [HD], Common bile duct [CBD], Pancreatic duct [PD] and Sphincter of Oddi [SoD]?
CD | HD | CBD | PD | SoD | |
1. | 9 | 3 | 4 | 7 | 6 |
2. | 3 | 4 | 9 | 6 | 7 |
3. | 4 | 3 | 9 | 6 | 7 |
4. | 3 | 9 | 4 | 7 | 6 |
Progressive degeneration of skeletal muscle mostly due to genetic disorder is called:
1. | Myasthenia gravis | 2. | Muscular dystrophy |
3. | Poliomyelitis | 4. | Muscle hyperplasia |
What percent of filtrate is reabsorbed by the renal tubules in human kidneys?
1. | Less than 5% | 2. | About 50% |
3. | About 70% | 4. | More than 99% |
Which occupational lung disorder can lead to cancer of lung?
1. Silicosis
2. Byssinosis
3. Bagassosis
4. Asbestosis
Match each item in Column I with one in Column II and select the correct answer from the codes given:
COLUMN I | COLUMN II | ||
A. | Closure of AV valves | a. | Second heart sound |
B. | Closure of semilunar valves | b. | First heart sound |
C. | Opening of AV valves | c. | Ventricular ejection |
D. | Opening of semilunar valves | d. | Passive ventricular filling |
Codes
A | B | C | D | |
1. | a | b | c | d |
2. | b | a | c | d |
3. | b | a | d | c |
4. | a | b | d | c |
What are the bones labeled A, B and C shown in the given diagram?
1. Malleus, Incus and Stapes respectively
2. Anvil, Hammer and Stirrup respectively
3. Stapes, Incus and Malleus respectively
4. Hammer, Stirrup and Anvil respectively
The primary commissural region of the brain consisting of white matter tracts that connects the left and right cerebral hemispheres is called as:
1. corpus striatum | 2. corpus luteum |
3. corpus callosum | 4. corpus spongiosum |
Which of the following hormones is not secreted by the human placenta?
1. | hCG | 2. | hGH |
3. | hPL | 4. | Progesterone |
Transfer of an ovum collected from a donor into the fallopian tube of another female is called as:
1. | ZIFT | 2. | GIFT |
3. | SUZI | 4. | ICSI |
In the absence of fertilization, corpus luteum:
1. | Stops secreting progesterone but increases the secretion of estrogen |
2. | Stops secreting estrogen but increases the secretion of progesterone |
3. | Increases the secretion of both progesterone and estrogen |
4. | Degenerates |
All the following statements regarding parathyroid hormone are correct except:
1. It is a peptide hormone
2. It is regulated by a tropin secreted by anterior pituitary
3. It stimulates the process of bone resorption or demineralization
4. It stimulates calcium absorption from the digested food
The component molecules of the cell membrane have two main parts, the head and the tail. These parts are either hydrophobic (repelled by water) or hydrophilic (attracted to water). Which is which?
1. | Hydrophilic Head and Hydrophobic Tail |
2. | Both Hydrophobic |
3. | Hydrophilic Tail and Hydrophobic Head |
4. | Both Hydrophilic |
Identify the correct statement regarding meiosis amongst the following:
I. Meiosis involves two sequential cycles of nuclear and cell divisions but only a single cycle of DNA replication.
II. Meiosis II is initiated after the parental chromosomes have replicated to produce identical sister chromatids at the S phase.
III. Meiosis involves pairing of bivalents and recombinations between them.
1. | I only | 2. | I and II only |
3. | I and III only | 4. | I, II and III |
The enzymes that catalyse removal of groups from substrates by mechanisms other than hydrolysis leaving double bonds are called as:
1. | Oxidoreductases | 2. | Hydrolases |
3. | Ligases | 4. | Lyases |
Match each item in Column I [Bio-control agent] with the pest/pathogen in Column II and select the correct answer from the codes given below:
|
COLUMN I |
|
COLUMN II |
A. |
Ladybird |
a. |
Aphids |
B. |
Dragonflies |
b. |
Mosquitoes |
C. |
Bacillus thuringiensis |
c. |
Butterfly caterpillars |
D. |
Trichoderma |
d. |
Fungi |
Codes
A | B | C | D | |
1. | a | b | c | d |
2. | b | a | c | d |
3. | a | b | d | c |
4. | b | a | d | c |
The ability of plasmids and bacteriophage DNA to replicate within bacterial cells:
1. | depends on a particular or sequence of the main chromosomal DNA |
2. | is possible due to promoter sequence present in the insert |
3. | cannot occur without telomeric sequences |
4. | is independent of the control of chromosomal DNA |
Lamarck has been criticized mainly on his tenet of:
1. inheritance of acquired characters
2. use and disuse of organs
3. key role played by environment in evolution
4. vital force in the body
The first human like being, the hominid, was called:
1. Homo habilis
2. Homo erectus
3. Homo ergaster
4. Homo neanderthelensis
If the sequence of nitrogen bases of the coding strand of DNA in a transcription unit is:
5' -ATGAATG-3',
the sequence of bases in its RNA transcript would be;
1. 5'-AUGAAUG-3'
2. 5'-UACUUAC-3'
3. 5'-CAUUCAU-3'
4. 5'-GUAAGUA-3'
Antisense technology:
1. | selectively blocks the expression of a gene. |
2. | combines genetic material from different species. |
3. | combines organelles and cells. |
4. | alters or transfers cells. |
Assuming complete dominance
recessiveness and independent assortment,
the ratio of progeny with the genotypes AaBb,
AABb, Aabb and aaBb from a cross AaBb X
AABb would respectively be:
1. 4:4:2:0
2. 4:2:4:2
3. 4:4:2:2
4. 4:4:2:1
Conventional breeding is often constrained by the availability of a limited number of disease-resistance genes that are present and identified in various crop varieties or wild relatives. This is most commonly overcome by:
1. | Inducing mutations | 2. | Somaclonal variations |
3. | Genetic engineering | 4. | Plant introduction |
Division of functional megaspore can be described as:
1. | Three free nuclear mitotic divisions. |
2. | One meiotic and two mitotic divisions, all free nuclear. |
3. | Three cytoplasmic mitotic divisions. |
4. | One meiotic and two mitotic divisions, meiotic being cytoplasmic and mitotic being free nuclear. |
At what temperature pollens can be stored for years in liquid nitrogen?
1. | 0°C | 2. | -100°C |
3. | -196°C | 4. | 4°C |
Cancer detection is mainly based on:
1. | Radiography | 2. | Ultrasonography |
3. | Magnetic resonance imaging | 4. | Histopathology |
In most prokaryotes, the transcription unit is:
1. | Mono-cistronic | 2. | Poly-cistronic |
3. | Multi-cistronic | 4. | Uni-cistronic |
When there is a change in the chromosome number such that the changes number is not an exact multiple of base number [haploid number], the condition is called as:
1. | Euploidy | 2. | Aneuploidy |
3. | Aberration | 4. | Non-disjunction |
If two living animals belong to the same phylum, they must belong to the same:
1. Class | 2. Genus |
3. Kingdom | 4. Family |
Coralloid roots in Cycas are associated with nitrogen fixing:
1. | Rhizobium | 2. | Frankia |
3. | Azospirillum | 4. | Cyanobacteria |
Identify the incorrect statement regarding cyanobacteria:
1. They have chlorophyll a similar to green plants
2. Colonies surrounded by pellicle – a protein rich layer
3. Often form blooms in polluted water bodies
4. Fix nitrogen in specialized cells called hetrocysts
Anal styles are borne on the:
1. | 9th segment only in female cockroach |
2. | 9th segment only in male cockroach |
3. | 10th segment only in female cockroach |
4. | 10th segment only in male cockroach |
Identify the number of animals that do not have homoiothermy from the list given in the box below:
Aptenodytes, Hemidactylus, Pteropus, Icthyophis, Pterophyllum, Carcharodon, Neophron, Myxine |
1. | 3 | 2. | 4 |
3. | 5 | 4. | 6 |
How many shoot apical meritsems are likely to be present in a twig of a plant possessing, 4 branches and 26 leaves
1. 26
2. 1
3. 5
4. 30
Venation is a term used to describe the pattern of arrangement of
1. Floral organs
2. Flower in inflorescence
3. Veins and veinlets in a lamina
4. All of them
The fruit in mango is:
1. Silicula
2. Aril
3. Drupe
4. Berry
An important evolutionary transition that appeared for the first time in Echinoderms is:
1. | Bilateral symmetry | 2. | Radial symmetry |
3. | Tube within a tube plan | 4. | Endoskeleton |
A protozoan reproduces by binary fission. What will be the number of protozoans in its population after six generations?
1. | 128 | 2. | 24 |
3. | 64 | 4. | 32 |
Which one of the following impurities is easiest to remove from wastewater?
1. | Bacteria | 2. | Colloids |
3. | Dissolved solids | 4. | Suspended solids |
Photochemical smog does not contain:
1. Ozone
2. NOx
3. PAN
4. Carbon monoxide
Which of the following forests is known as the ‘lungs of the planet Earth’?
1. | Taiga forest | 2. | Tundra forest |
3. | Amazon rainforests | 4. | Rainforests of North East India |
The sequence of communities of primary succession in water is :
1. | Phytoplankton, sedges, free-floating hydrophytes, rooted hydrophytes, grasses, and trees. |
2. | Phytoplankton, free-floating hydrophytes, rooted hydrophytes, sedges, grasses, and trees. |
3. | Free-floating hydrophytes, sedges, phytoplankton, rooted hydrophytes, grasses, and trees. |
4. | Phytoplankton, rooted submerged hydrophytes, floating hydrophytes, reed swamp, sedges, meadow, and trees. |
Approximately, what percent of energy is transferred to each trophic level from the lower trophic level in an ecosystem?
1. | 1 | 2. | 10 |
3. | 50 | 4. | 90 |
The tiger census in our national parks and tiger reserves is often based on:
1. | Pug marks | 2. | Cub count |
3. | Area allocation | 4. | Collar position |
The respiratory pathway is best described as:
1. | Catabolic | 2. | Anabolic |
3. | Amphibolic | 4. | Amphipathic |
Identify the correctly matched rows:
C3 | C4 | ||
I. | Productivity | Low | High |
II. | CO2 compensation point | Low | Low |
III. | Temperature optimum | 20 – 250 C | 30 – 450 C |
1. Only I and II | 2. Only I and III |
3. Only II and III | 4. I, II and III |
The process of guttation takes place
1. When the root pressure is high and the rate of transpiration is low
2. When the root pressure is low and the rate of transpiration is high
3. When the root pressure equals the rate of transpiration
4. When the root pressure as well as rate of transpiration are high
Which of these is not an important component of initiation of parturition in humans?
1. Increase in oestrogen and progesterone ratio
2. Synthesis of prostaglandins
3. Release of oxytocin
4. Release of prolactin
Evolutionary history of an organism is known as
1. Phylogeny
2. Ancestry
3. Paleontology
4. Ontogeny
For transformation, micro-particles coated with DNA to be bombarded with gene gun are made up of:
1. | Silver or Platinum | 2. | Platinum or Zinc |
3. | Silicon or Platinum | 4. | Gold or Tungsten |
Semiconservative replication of DNA was first demonstrated in
1. Salmonella typhimurium
2. Drosophila melangaster
3. Escherichia coli
4. Streptococcus pneumonia
In majority of angiosperms:
1. | a small central cell is present in the embryo sac |
2. | egg has a filiform apparatus |
3. | there are numerous antipodal cells |
4. | reduction division occurs in the megaspore mother cells |
What is the function of germ pore?
1. Emergence of radicle
2. Absorption of water for seed germination
3. Initiation of pollen tube
4. Release of male gametes
What is true about Bt toxin?
1. The concerned Bacillus has antitoxins.
2. The inactive protoxin gets converted into active form in the insect gut
3. BT protein exists as active toxin in the Bacillus.
4. The activated toxin enters the ovaries of the pest to sterilise it and thus prevent its multiplication
Which one of the following statement is correct?
1. Patients who have undergone surgery are given cannabinoids to relieve pain
2. Benign tumours show the property of metastasis
3. Heroin accelerates body functions
4. Malignant tumours may exhibit metastasis
The mechanism that causes a gene to move from one linkage group to another is called
1. Crossing-over
2. inversion
3. duplication
4. translocation
Triticale, the first man-made cereal, has been obtained by crossing wheat with
1. Rye
2. Pearl millet
3. Sugarcane
4. Barley
Trichoderma harzianum has proved a useful microorganism for:
1. Biological control of soil-borne plant pathogens
2. Bioremediation of contaminated soils
3. Reclamation of wastelands
4. Gene transfer in higher plants
Which one of the following shows isogamy with nonflagellated gametes?
1. Ectocarpus
2. Ulothrix
3. Spirogyra
4. Sargassum
Zygotic meiosis is characteristic of
1. | Marchantia | 2. | Fucus |
3. | Funaria | 4. | Chlamydomonas |
Study the four statements (A – D) given below and select the two correct ones out of them:
A. Definition of biological species was given by Ernst Mayr.
B. Photoperiod does not affect reproduction in plants.
C. Binomial nomenclature system was given by R. H. Whittaker.
D. In unicellular organisms, reproduction is synonymous with growth.
The two correct statements are
1. A and B
2. B and C
3. C and D
4. A and D
Which of the following rRNAs acts as structural RNA as well as ribozyme in bacterial?
1. 5-8s rRNA
2. 5S rRNA
3. 18 S rRNA
4. 23S rRNA
Consider the following four statements A, B, C, and D & select the right option for two correct statements.
Statements:
(A) | In vexillary aestivation, the large posterior petal is called standard, two lateral ones are wings and two small anterior petals are termed keel. |
(B) | The floral formula for Liliaceae is |
(C) | In pea flower, the stamens are monadelphous |
(D) | The floral formula for Solanaceae is |
The correct statements are
1. | (C) and (D) | 2. | (A) and (C) |
3. | (A) and (B) | 4. | (B) and (C) |
Which one of the following pairs of animals are similar to each other pertaining to the feature stated against
them ?
1. Pteropus and Ornithorhynchus– Viviparity
2. Garden lizard and Crocodile - Three chambered heart
3. Ascaris and Ancylostoma - Metameric segmentation
4. Sea horse and Flying fish - Cold blooded (poikilothermal)
Which one of the following statements pertaining to pollutant is correct?
1. DDT is nonbiodegradable pollutant
2. Excess fluoride in drinking water causes osteoporosis
3. Excess cadmium in drinking water may cause black foot disease
4. Methyl mercury in water may cause ‘’itaiitai’’ disease.
Limit of BOD prescribed by Central Pollution Control Board for discharge of industrial and municipalwaste waters into natural surface waters is
1. < 3.0 ppm
2. < 10 ppm
3. < 30 ppm
4. < 100 ppm
Exotic species introduced in India are:
1. Lantana camara, Water Hyacinth
2. Water Hyacinth, Prosopis cineraria
3. Nile Perch, Ficus religiosa
4. Ficus religiosa, Lantana camara
Which one of the following is one of the characteristics of a biological community.
1. Natality
2. Mortality
3. Sex-ratio
4. Stratification
Just as a person moving from Delhi to Shimla to escape the heat for the duration of hot summer, thousands of
Migratory birds from Siberia and other extremely cold northern regions move to:
1. Western Ghat
2. Meghalaya
3. Corbett national park
4. Keoladeo national park
During which stage in the complete oxidation of glucose, is the greatest number of ATP molecules formed from ADP?
1. Glycolysis
2. Krebs cycle
3. Electron transport
4. Conversion of pyruvic acid to acetyl CoA
Which of the following cells during gametogenesis is normally diploid?
1. | Primary polar body |
2. | Spermatid |
3. | Spermatogonia |
4. | Secondary polar body |
Which one of the following pairs is incorrectly matched?
1. Glucagon - Beta cells (source)
2. Somatostatin - Delta cells (source)
3. Corpus luteum - Relaxin (secretion)
4. Insulin - Diabetes mellitus (disease)
How does steroid hormone influence the cellular activities?
1. Using aquaporin channels as second messenger
2. Changing the permeability of the cell membrane
3. Binding the DNA and forming a gene-hormone complex
4. Activating cyclic AMP located on the cell membrane
The frequency of recombination between gene pairs on the same chromosome as a measure of the distance between genes was explained by:
1. Sutton Boveri
2. T.H. Morgan
3. Gregor J. Mendel
4. Alfred Sturtevant
The shorter and longer arms of submetacentric chromosome are referred to as:
1. m-arm and n-arm respectively
2. s-arm and l-arm respectively
3. p-arm and q-arm respectively
4. q-arm and p-arm respectively
Select the option including all sexually transmitted diseases.
1. Gonorrhoea, Malaria, Genital herpes
2. AIDS, Malaria, Filaria
3. Cancer, AIDS, Syphilis
4. Gonorrhoea, Syphilis, Genital herpes
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.
The process responsible for facilitating loss of water in liquid form from the tip of grass blades at night and early morning is:
1. Root pressure
2. Imbibition
3. Plasmolysis
4. Transpiration
Cuboidal epithelium with brush border of microvilli is found in :
1. Ducts of salivary glands
2. Proximal convoluted tubule of nephron
3. Eustachian tube
4. Lining of intestine
Which one of the following is the most abundant protein in the animals?
1. | Collagen | 2. | Lectin |
3. | Insulin | 4. | Hemoglobin |
Name the plant growth regulator which upon spraying on sugarcane crop, increases the length of stem, thus increasing the yield of sugarcane crop.
1. | Gibberellin | 2. | Ethylene |
3. | Abscisic acid | 4. | Cytokinin |
Identify the correct statement with regard to phase (Gap 1) of interphase.
1. The reorganisation of all cell components takes place.
2. The cell is metabolically active, grows but does not replicate its DNA
3. Nuclear division takes place
4. DNA synthesis or replication takes place.
Identify the correct statement with reference to human digestive system
1. Serosa is the innermost layer of the alimentary canal
2. Ileum is a highly coiled part
3. Vermiform appendix arises from duodenum
4. Ileum opens into small intestine
Which of the following would help in prevention of diuresis?
1. Reabsorption of Na+ and water from renal tubules to aldosterone
2. Atrial natriuretic factor causing vasoconstriction
3. Decrease in secretion of renin by JG cells
4. More water reabsorption due to under-secretion of ADH
The first phase of translation is:
1. Recognition of DNA molecule
2. Aminoacylation of tRNA
3. Recognition of an anti-codon
4. Binding of mRNA to ribosome
The QRS complex in a standard ECG represents:
1. Depolarisation of auricles
2. Depolarisation of ventricles
3. Reploarisation of ventricles
4. Repolarisation of auricles
Select the correct events that occur during inspiration.
(a) Contraction of diaphragm
(b) Contraction of external inter-costal muscles
(c) Pulmonary volume decreases
(d) Intra pulmonary pressure increases
1. (c) and (d) | 2. (a), (b) and (d) |
3. only (d) | 4. (a) and (b) |
Match the following columns and select the correct option :
Column I | Column II | ||
(a) | Rods and cones | (i) | Absence of Cones photoreceptor cells |
(b) | Blind Spot | (ii) | Cones are densely packed |
(c) | Fovea | (iii) | Photoreceptor cells |
(d) | Iris | (iv) | Visible coloured portion of the eye |
(a) | (b) | (c) | (d) | |
1. | (iii) | (i) | (ii) | (iv) |
2. | (ii) | (iii) | (i) | (iv) |
3. | (iii) | (iv) | (ii) | (i) |
4. | (ii) | (iv) | (iii) | (i) |
Phycoerythrin is the major pigment in :
1. Red algae
2. Blue-green algae
3. Green algae
4. Brown algae
Which of the following element helps in maintaining the structure of ribosomes?
1. Magnesium | 2. Zinc |
3. Copper | 4. Molybdenum |
Match the following columns and select the correct option
Column - I Column - II
(a) Gout (i) Decreased levels of estrogen
(b) Osteoporosis (ii) Low ions in the blood
(c) Tetany (iii) Accumulation of uric acid crystals
(d) Muscular (iv) Auto immune dystrophy disorder
(v) Genetic disorder
1. (a)-(ii), (b)-(i), (c)-(iii), (d)-(iv)
2. (a)-(iii), (b)-(i), (c)-(ii), (d)-(v)
3. (a)-(iv), .(b)-(v), (c)-(i), (d)-(ii)
4. (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)