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Transgenic plants are the ones:

Biodiversity of a geographical region represents:

Which of the following is expected to have the highest value (gm/$m^2$ /yr) in a grassland ecosystem: -

The process of separation and purification of expressed protein before marketing is called:
1. Upstream processing
2. Downstream processing
3. Bioprocessing
4. Postproduction processing

Match List - I with List - II

Choose the correct answer from the options given below:

The specific palindromic sequence which is recognized by EcoRI is:

In which of the following do both pairs have the correct combination?

Which one is a true statement regarding DNA polymerase used in PCR?
1. It is used to ligate introduced DNA in the recipient cell
2. It serves as a selectable marker
3. It is isolated from a virus
4. It remains active at high temperature

Which one of the following hydrolyses internal phosphodiester bonds in a polynucleotide chain?

A selectable marker is used to:

Which of the following regions of the globe exhibits the highest species diversity?

A specific recognition sequence identified by endonucleases to make cuts at specific positions within the DNA is: 
1. Palindromic Nucleotide sequences
2. Poly(A) tail sequences
3. Degenerate primer sequence
4. Okazaki sequences

Select the correct statement about biodiversity:

Which of the following statements is incorrect regarding the phosphorus cycle?

Global agreement in specific control strategies to reduce the release of ozone depleting substance was adopted by:
1. Rio de Janeiro Conference
2. The Montreal Protocol
3. The Koyoto Protocol
4. The Vienna Convention

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

In RNAi, the genes are silenced using:

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

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

The exploitation of bioresources of a nation by multinational companies without authorization from the concerned country is referred to as:

Which one of the following is commonly used in the transfer of foreign DNA into crop plants? 
1. Penicilliumexpansum
2. Trichodermaharzianum
3. Meloidogyne incognita
4. Agrobacterium tumefaciens

Stirred-tank bioreactors have been designed for:
1. Availability of oxygen throughout the process
2. Addition of preservatives to the product
3. Purification of the product
4. Ensuring anaerobic conditions in the culture vessel

Match the following techniques or instruments with their usage :

Select the correct option from the following:

A male insect mistakes an orchid flower to be female due to its shape and performs the act of copulation and induces pollination. This is an example of:
1. Mimicry
2. Pseudocopulation
3. Pseudo pollination
4. None

Select the correct statement from the following:

The rate of decomposition is faster in the ecosystem due to the following factors EXCEPT:-
1. Detritus rich in sugars
2. Warm and moist environment
3. Presence of aerobic soil microbes
4. Detritus richer in lignin and chitin

DNA strands on a gel, stained with ethidium bromide, when viewed under UV radiation, appear as:

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

Choose the correct answer from the options given below:

Which of the following ecological pyramids is generally inverted?
1. Pyramid of biomass in a sea
2. Pyramid of numbers in grassland
3. Pyramid of energy
4. Pyramid of biomass in a forest

In bacteria, the plasmid is:
1. Extrachromosomal material
2. Main DNA
3. Non-functional DNA
4. Repetitive gene

An example of endomycorrhiza is:

Consider the following four statements (I-IV) and select the option which includes all the correct ones only :

1.  Statements (I), (III) and (IV) 
2. Statements (II), (III) and (IV) 
3. Statements (I), (II) 
4. Statements (III), (IV) 

Match the items given in Column I with those given in Column II and select the correct option given below:

Western Ghats have a large number of plant and animal species that are not found anywhere else. Which of the following terms will you use to notify such species?

Golden rice is a promising transgenic crop. When released for cultivation, it will help in:
1. alleviation of vitamin-A deficiency
2. pest resistance
3. herbicide tolerance
4. producing a petrol-like fuel from rice

A scrubber in the exhaust of a chemical industrial plant removes:
1. Gases like sulphur dioxide
2. Particulate matter of the size 5 micrometer or above
3. Gases like ozone and methane
4. Particulate matter of the size 2.5 micrometer or less

During ecological succession:

The amount of nutrients, such as carbon, nitrogen, phosphorus, and calcium present in the soil at any given time, is referred to as:

According to Darwin, organic evolution is due to:

In the exponential growth equation N_t =N₀e^rt, e represents :
1. The base of natural logarithms 
2. The base of geometric logarithms
3. The base of number logarithms
4. The base of exponential logarithms

Which type of association is found between entomophilous flower and pollinating agent?

Restriction endonucleases:-

Which one of the following statements is correct for secondary succession?    
1. It begins on a bare rock
2. It occurs on a deforested site
3. It follows the primary succession
4. It is similar to primary succession except that it has a relatively fast pace

An association of individuals of different species living in the same habitat and having functional interactions is known as:

In India, we find mangoes with different flavours, colours, fibre content, sugar content, and even shelf life. The large variation is on account of:

Asymptote in a logistic growth curve is obtained when:
1. K = N
2. K > N
3. K < N
4. The value of ‘r’ approaches zero

The total amount of carbon fixed annually by plants is:
1. $4\times 10{ }^{23} kg$
2. $4\times 10{ }^{13} kg$
3. $4\times 10{ }^{10} kg$
4. $4\times 10{ }^{11} kg$

If an agricultural field is liberally irrigated for a prolonged period of time, it is likely to face the problem of:

Spooling is:

Some of the characteristics of Bt cotton are:

Which of the following statements is not correct?

Consider the following statements (A)-(D) each with one or two blanks.

A major component of gobar gas is:

The figure below is the diagrammatic representation of the E.Coli vector pBR 322. Which one of the given options correctly identifies its certain component(s)?
 
1. ori - original restriction enzyme
2. rop-reduced osmotic pressure
3. Hind III, EcoRI - selectable markers
4. amp^R, tet^R- antibiotic resistance genes

The infectious stage of plasmodium that enters the human body is:

For the commercial and industrial production of Citric Acid, which of the following microbes is used?
1. Aspergillus niger
2. Lactobacillus sp
3. Saccharomyces cerevisiae
4. Clostridium bretylium

Which two of the following changes (a-d) usually tend to occur in the plain dwellers when they move to high altitudes? (3,500 m or more)
(a) Increase in red blood cell size
(b) Increase in red blood cell production
(c) Increased breathing rate
(d) Increase in thrombocyte count
Changes occurring are:
1. (a) and (d)
2. (a) and (b)
3. (b) and (c)
4. (c) and (d)

Which one of the following statements is correct with respect to AIDS?

Inbreeding depression is -

When domestic sewage mixes with river water-

Cyclosporin A, used as an immuno-suppression agent, is produced from:
1. Monascus purpureus
2. Saccharomyces cerevisiae
3. Penicillium notatum
4. Trichoderma polysporum

Which fish selectively feed on larvae of mosquitoes?

Which of the following immune responses is responsible for the rejection of kidney graft?

In the cloning of cattle, a fertilized egg is taken out of the mother’s womb and:   

What is true for a plasmid?
1. Plasmids are widely used in gene transfer
2. These are found in a virus
3. A plasmid contains genes for vital activities
4. This is the main part of the chromosome

A lake with an inflow of domestic sewage rich in organic waste may result in:

Given below is the representation of the extent of the global diversity of invertebrates. What groups do the four portions (A-D) represent respectively?
                          

In which disease does the mosquito transmitted pathogen cause chronic inflammation of lymphatic vessels?

A certain patient, X, is suspected to be suffering from acquired immune deficiency syndrome. Which diagnostic technique will you recommend for its detection?

Which of the following, in sewage treatment, removes suspended solids?
1. Secondary treatment
2. Primary treatment
3. Sludge treatment
4. Tertiary treatment

For effective treatment of the disease, early diagnosis and understanding of its pathophysiology is very important. Which of the following molecular diagnostic techniques is very useful for early detection?
1. ELISA Technique
2. Hybridization Technique
3. Western Blotting Technique
4. Southern Blotting Technique

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

Which part of poppy plant is used to obtain the drug Smack?

The principle of competitive exclusion was stated by:

Match the following diseases with the causative organism and select the correct option.

In higher vertebrates, the immune system can distinguish self-cells and non-self. If this property is lost due to genetic abnormality and it attacks self-cells, then it leads to :

Which one of the following is not a property of cancerous cells whereas, the remaining three are?
1. They compete with the normal cells for vital nutrients.
2. They do not remain confined in the area of formation.
3. They divide in an uncontrolled manner.
4. They show contact inhibition.

Outbreeding is an important strategy in animal husbandry because it:
1. helps in accumulation of superior genes.
2. is useful in producing pure lines of animals.
3. is useful in overcoming inbreeding depression.
4. exposes harmful recessive genes that are eliminated by selection.

Which of the following yields citric acid?

In an area where DDT had been used extensively, the population of birds declined significantly because:
1. Birds stopped laying eggs
2. Earthworms in the area got eradicated
3. Cobras were feeding exclusively on birds
4. Many of the birds laid eggs, but the eggs did not hatch

In a growing population of a country:

MALT constitutes about __________percent of the lymphoid tissue in human body.

Match the items in Column-I with those in Column-II

Select the correct option from the following:
1. (a)-(iv), (b)-(ii), (c)-(i), (d)-(iii)
2. (a)-(iii), (b)-(ii), (c)-(iv), (d)-(i)
3. (a)-(ii), (b)-(i), (c)-(iii), (d)-(iv)
4. (a)-(i), (b)-(iii), (c)-(iv), (d)-(ii)

The yellowish fluid "colostrum" secreted by mammary glands of the mother during the initial days of lactation has abundant antibodies (IgA) to protect the infant. This type of immunity is called as:

To which type of barriers under innate immunity, do the saliva in the mouth and the tears from the eyes, belong?

Which of the following viruses is not transferred through semen of an infected male?
1. Human immunodeficiency virus
2. Chikungunya virus
3. Ebola virus
4. Hepatitis B virus

Which one of the following statements is correct with respect to immunity?

Match List-I with List-II

Choose the correct answer from the options given below :

Read the following four statements (a-d):

How many of the above statements are wrong?

Read the following four statements (A-D) and find out certain mistakes in two of them :

Which of the two statements have mistakes?

Frog feeding on an herbivorous insect is:

The biomass available for consumption by the herbivores and the decomposers is called:
1. net primary productivity
2. secondary productivity
3. standing crop
4. gross primary productivity

Which one of the following is the correct statement regarding the particular psychotropic drug specified?

Which vector can clone only a small fragment of DNA?
1. Bacterial artificial chromosome
2. Yeast artificial chromosome
3. Plasmid
4. Cosmid

Inspite of interspecific competition in nature, which mechanism the competing species might have evolved for their survival?

A country with a high rate of population growth took measures to reduce it. The figure below shows age-sex pyramids of populations. A and B are twenty years apart. Select the correct interpretation about them: 

Interpretations

By which method was a new breed 'Hisardale' of sheep found by using Bikaneri ewes and Marina rams?
1. Mutational breeding
2. Cross breeding
3. Inbreeding
4. Outcrossing

In genetic engineering, a DNA segment (gene) of interest is transferred to the host cell through a vector. Consider the following four agents (A-D) in this regard and select the correct option about which one or more of these can be used as a vector/vectors:

Options:

Carnivorous animals - lions and leopards, occupy the same niche but lions predate mostly larger animals and leopards take smaller ones. This mechanism of competition is referred to as:

Nowadays, it is possible to detect the mutated gene causing cancer by allowing the radioactive probe to hybridise its complementary DNA in clone of cells, followed by its detection using autoradiography because: