The crylAb gene codes the protein for the specific insect group -

The parturition is induced by a complex neuroendocrine mechanism. Which of the following hormone is not involved in this process?

The organisation set up by the Indian Government to take decisions regarding the validity of GM research and the safety of introducing GM-organism is:

Match List I with List - II.

List - I	List - II
(A) Lepidopteran	(I) Beetles
(B) Coleopterans	(II) Meloidegyne incognitia
(C) Dipterans	(III) Tobacco budworm
(D) Nematode	(IV) Agrobacterium
	(V) Flies and mosquitoes

Choose the correct answer from the options given below:

Which structure in the microsporangium provides nourishment to pollen grains?

Which of the followings belong to false fruit category?
(A). Apple
(B). Cashew
(C). Strawberry
(D). Orange
Choose the correct answer from the options given below:

Read the paragraph given below and answer the question. If a person is born with a hereditary disease, can a corrective therapy be taken for such a disease? Gene therapy is an attempt to do this. Gene therapy is a collection of methods that allows correction of a gene defect that has been diagnosed in a child/embryo. Here genes are inserted into a person's cells and tissues to treat disease.
The first clinical gene therapy was given in to

A wire of resistance 4 R is bent in the form of a circle. The equivalent resistance between two points diametrically opposite on the circle will be

Arrange the following steps of PCR in correct sequence.
(A) Temperature induced denaturation of double stranded DNA.
(B) Isolation of gene of interest
(C) Amplification of gene by using Taq polymerase
(D) Primer annealing on the separated templates
Choose the correct answer from the options given below:

Interstitial compounds are formed when small atoms like \(H , C\), or N are trapped in the crystal lattice of metal. Which of the following statements are true about the interstitial compounds?
(A) Interstitial compounds have higher melting points than the pure metals.
(B) Interstitial compounds are very soft.
(C) Interstitial compounds are very reactive.
(D) Interstitial compounds retain metallic conductivity.
Choose the correct answer from the options given below:

The compound resistant to oxidation is

The area of region bounded by the curves
\(y=x^2+2, y=-x, x=0\) and \(x=1\) is

Read the passage carefully and answer the questions
The carbonyl group of aldehydes and ketones is highly polar. The positively charged carbon is readily attacked by electron-rich nucleophile and the negatively charged oxygen atom is attacked by an electro-deficient electrophile. Aldehydes and ketones undergo nucleophilic addition reactions in the presence of acid or a base. The mechanism involves attack of a nucleophile on the electron deficient carbonyl carbon to form a tetrahedral intermediate. A new bond is formed between the carbon and oxygen. Protonation of the anion furnished by the reaction medium yields a neutral addition product. The addition product is same whether the reaction is catalyzed by acid or a base. For example in the presence of base aldehydes and ketones react with hydrogen cyanide to form cyanohydrin.
The source of nucleophile in the base catalyzed cyanohydrin formation is: