The net primary productivity (NPP) in an ecosystem can be represented by:

Arrange the following cells in correct sequence of oogenesis:
(A) Secondary oocyte
(B) Oogonia
(C) Primary oocyte
(D) Ovum
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Arrange the given steps of DNA fingerprinting in the sequence from initiation to end.
(A) Digestion of DNA by restriction endonuclease
(B) Isolation of DNA
(C) Hybridisation using labelled VNTR probe
(D) Transferring (blotting) of separated DNA fragments to synthetic membrane
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Who discovered that the behaviour of chromosomes was parallel to the behaviour of genes ?

Find the odd one out among the following structures?

Aneuploidy refers to the:

Microbes in human welfare Microbes are a very important component of life on earth. we use microbes and microbially derived products almost every day, like LAB to make curd, yeast to make bread, adding flavor and texture to cheese, producing antibiotics etc. The addition of LAB, improves the milk quality by increasing vit. B12. Cheese is one of the oldest food items in which microbes are used. For example, large holes in Swiss cheese are due to CO2 produced by the bacterium Propionibacterium sharmanii. The BOD test measures the rate of uptake of oxygen by microorganisms in a sample of water and thus, indirectly, BOD is a measure of the organic matter present in the water. The greater the BOD of waste water, the more is its polluting potential. In anaerobic sludge digesters, bacteria produce a mixture of gases like methane, hydrogen sulphide and carbon dioxide. These gases form biogas and can be used as a source of energy. Biofertilisers are organisms that enrich the nutrient quality of the soil. The main sources of biofertilisers are bacteria, fungi and cyanobacteria. You have studied about the nodules on the roots of leguminous plants formed by the symbiotic association of Rhizobium. These bacteria fix atmospheric nitrogen into organic forms, which is used by the plant as a nutrient. Other bacteria can fix atmospheric nitrogen while free-living in the soil (examples Azospirillum and Azotobacter).
BOD refers to the -

The function \(Z=\alpha x+\beta y(\alpha, \beta>0)\) corresponds to the objective function of an LPP that needs to be maximized subject to \(x+y \leq 1, x, y \geq 0\).
Then the set of optimal solutions is:

If \(A^{-1}\) exists for the matrix \(A=\left[\begin{array}{ccc}1 & \lambda & -1 \\ -1 & 1 & 0 \\ \lambda & 1 & 1\end{array}\right]\) then

Which of the following method is used for purification of water

A person has taken a loan of Rs. 40, 000 for 3 months from a lender who has deducted Rs. 2, 000 as interest at the time of lending.
Then the effective rate of interest charged per annum by the lender is :
[Given \((1.0526)^4=1.2275\) ]

The projection of the vector \(\hat{i}+\hat{j}+\hat{k}\) on the vector \(\hat{j}\) is:

Match List I with List II

List-l (Name of compound)	List-II (Structure)
(A). Resorcinol	(I).
(B). Catechol	(II).
(C). Hydroquinone	(III).
(D). p-Cresol	(IV).

Choose the correct answer from the options given below :