Select the examples of ex-situ conservation:
(A). Zoological parks
(B). Sanctuaries
(C). Seed banks
(D). Cryopreservation of gametes
Choose the correct answer from the options given below:

Failure of chromatids to segregate during cell division cycle results in :

Study the following figure and answer the questions:


In the figure correct labelling of \(A , B , C\) and D is:

Which of the following was used to construct first recombinant DNA?

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.
Which one of the following species is not killed by insecticidal protein produced by Bacillus thuringiensis?

HIV primarily destroys which cells of the immune system?

Which of the following came to India as a contaminant with imported wheat

The assisted reproductive technique where embryos with more than 8 blastomeres are transferred into the human uterus is known as:

A doctor is to visit a patient.
The probabilities that he comes by train, bus, scooter or other means are
\(\frac{3}{10}, \frac{1}{5}, \frac{1}{10}\) and \(\frac{2}{5}\) respectively.
The probabilities that he will be late are
\(\frac{1}{4}\) if he comes by train,
\(\frac{1}{3}\) if he comes by bus,
\(\frac{1}{12}\) if he comes by scooter.
If he comes by other means of transport, he will not be late.
When he arrives, he arrives late.
The probability that he comes by bus is:

The rate of a chemical reaction doubled for every \(10^{\circ} C\) rise in temperature. If the temperature is raised by \(50^{\circ} C\), the rate of reaction will be

Which of the following are not contraceptive methods?
(A) IUDs
(B) GIFT
(C) IUI
(D) Cervical caps
Choose the correct answer from the options given below :

The co-ordinates of the point where the line\(\frac{x+3}{3}=\frac{y-1}{-1}=\frac{z-5}{-5}\) cuts the yz--plane are :

A bar magnet falls freely from a height of 9.8 m through a metal ring. Its acceleration will be equal to