The active chemical drug reserpine is obtained from:

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Some strains of `Bacillus thuringiensis` produce proteins that kill certain insects such as lepidopterans (tobacco budworm, armyworm), coleopterans (beetles) and dipterans (flies, mosquitoes). In `Bacillus thuringiensis` the toxin is coded by a gene `crylAc` named cry. There are a number of them, for example, the proteins encoded by the genes `crylAc` and `cryllAb` control the cotton bollworms, that of `crylAb` controls corn borer. Using conventional methods of diagnosis (serum and urine analysis, etc.) early detection is not possible. Recombinant DNA technology, Polymerase Chain Reaction (PCR) and Enzyme Linked Immuno-sorbent Assay (ELISA) are some of the techniques that serve the purpose of early diagnosis. The first clinical gene therapy was given in 1990 to a 4-year old girl with adenosine deaminase (ADA) deficiency. This enzyme is crucial for the immune system to function. The disorder is caused due to the deletion of the gene for adenosine deaminase. `RNAi` takes place in all eukaryotic organisms as a method of cellular defense. This method involves silencing of a specific mRNA due to a complementary `dsRNA` molecule that binds to and prevents translation of the `mRNA`.
Some strains of `Bacillus thuringiensis` produce proteins that do not kill ceratin organisms -

DNA fingerprinting works on the principle of

Match List-I with List-II

List-I (Geological periods)	List-II (Plants evolved)
(A) Devonian	(I) Gnetales
(B) Carboniferous	(II) Cycads
(C) Jurassic	(III) Seed ferns
(D) Cretaceous	(IV) Progymnopserms

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Arrange the stages of embryo development in a dicot plant.
(A) Heart shaped embryo
(B) Globular embryo
(C) Zygote
(D) Mature embryo
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Read the following passage carefully and answer the given questions.
Insulin consists of two short polypeptide chains- chain A and chain B, that are linked together by disulphide bridges. Some strains of Bacillus thuringiensis produce proteins that kill certain insects such as lepidopterans, coleopterans and dipterans. Bt toxin protein is converted into an active form of toxin due to the alkaline pH of the gut which solubilise the crystals. Transgenic animals that produce useful biological products can be created by the introduction of the portion of DNA (or genes) which codes for a particular product such as human protein (alpha-1-antitrypsin) used to treat emphysema. Plants, bacteria, fungi and animals whose genes have been altered by manipulation are called Genetically Modified Organisms (GMO). GM plants have been useful in many ways. Genetic modification has: (i) made crops more tolerant to abiotic stresses. (ii) reduced reliance on chemical pesticides (pest-resistant crops). (iii) helped to reduce post harvest losses. (iv) increased efficiency of mineral usage by plants (this prevents early exhaustion of fertility of soil). (v) enhanced nutritional value of food.
Transgenic animals that produce useful biological products such as human protein (alpha-1-antitrypsin) used to treat the disorder:

In grass families, the cotyledon is called as:

When an insect feeds on the Bt plant, the insect dies due to the conversion of inactive protein to active protein in:

The value of the integral \(\int_{-\frac{\pi}{2}}^{\frac{\pi}{2}} \cos ^2 x d x\) is:

Which of the following components were taken by S.L. Miller in a closed flask for his experiment on the origin of life?
(A) CH₄
(B) NH₃
(C) CO₂
(D) Water vapours
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A closely wound coil of 50 turns and radius 15 cm carries a current of 3 A. The magnetic moment of the coil is:

Identify the correct sequence involved in the formation of female gametophyte in angiosperms?
(A) 2-nucleated embryo sac
(B) Functional megaspore
(C) Female gametophyte
(D) 4-nucleated embryo sac
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A linear programming problem is as follows :
Minimize \(z=2 x+3 y\)
Subject to the constraints \(x \geq 3, x \leq 9, y \geq 0, x-y \geq 0, x+y \leq 14\).
The feasible region has 5 corner points including