Which one of the following is not a parasitic adaptation?

Which of the following is a hormonal method of contraception?

Which one of the followings is responsible for producing the large holes in "Swiss cheese"?

Identify the regions of the transcription unit.
(A) Promoter
(B) Sigma factor
(C) Terminator
(D) The structural gene
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Which one of the following structures is not the male sex accessory duct?

Arrange the given products formed during sewage treatment in correct sequence?
(A) Biogas
(B) Activated sludge
(C) Flocs
(D) Primary sludge
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Read the following paragraph and answer the given questions.
RNAi takes place in all eukaryotic organisms as a method of cellular defense. The source of this complementary RNA could be from an infection by viruses having RNA genomes or mobile genetic elements (transposons) that replicate via an RNA intermediate. Insulin from an animal source, though caused some patients to develop allergy or other types of reactions to the foreign protein. Insulin consists of two short polypeptide chains: chain A and chain B, that are linked together by disulphide bridges. Transgenic mice are being developed for use in testing the safety of vaccines before they are used on humans. Transgenic mice are being used to test the safety of the polio vaccine. If successful and found to be reliable, they could replace the use of monkeys to test the safety of batches of the vaccine. Specific Bt toxin genes were isolated from Bacillusthuringiensis} and incorporated into the several crop plants such as cotton. The choice of genes depends upon the crop and the targeted pest, as most Bt toxins are insect-group specific. The toxin is coded by a gene cryIAc named cry. There are a number of them, for example, the proteins encoded by the genes cryIAc and cryIIAb control the cotton bollworms, that of cryIAb controls corn borer.

The transgenic mice are being used to test the safety of which vaccine?

Which of the following has the maximum penetration power ?

\(\cos ^{-1}\left(\frac{3}{5} \cos x+\frac{4}{5}\ sinx \right)=\)

If the matrix \(\left[\begin{array}{ccc}x-y & 1 & -2 \\ 2 x-y & 0 & 3 \\ 2 & -3 & 0\end{array}\right]\) is skew-symmetric, then the values of \(x\) and \(y\) are respectively:

Match List - I with List - II.

List - I	List - II
(A) Plasmid of Salmonella	(I) Join foreign DNA to plasmid
(B) Restriction enzymes	(II) Insertional inactivation
(C) Ligases	(III) Construction of \(1^{s t}\) recombinant DNA
(D) \(\beta\)-galactosidase	(IV) Molecular scissors

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Area of the region bounded by \(y=-1, y=2, x=y^3\) and \(x=0\) is :

Answer the question on basis of passage given below :
Vitamins represent a group of organic compounds which are needed in small amount for the healthy growth and maintenance of our body. These are not synthesized by the body and are supplied in the diet. The deficiency of vitamins can be supplemented with medicines.
Match List - I with List – II.

List - I	List - II
A. Vitamin A	I. Green leafy vegetables, spinach, cabbage.
B. Vitamin B12	II. Fish liver oil, carrots, butter and milk.
C. Vitamin C	III. Egg and curd.
D. Vitamin K	IV. Citrus fruits, amla and green leafy vegetables.

Choose the correct answer from the options given below :