The animal used to test the safety of polio vaccine is.

Cryopreservation technique used for the conservation of threatened animals and plants is:

Choose the appropriate term for the rate of formation of new organic matter by consumers:

Which of the following is NOT a sexually transmitted disease?

Match the Enzyme in List - I with its Activity in List - II.

List - I	List - II
(A) Taq DNA Polymerase	(I) Cleaves the DNA at ends
(B) Exonuclease	(II) Breaks the fungal cell wall
(C) Protease	(III) Stable above 90°C
(D) Chitinase	(IV) Break the protein molecules

Choose the correct answer from the options given below :

Identify the statements which are true for oogenesis.
A. Large number of primary follicles degenerate during the phase from birth to puberty.
B. Antrum a fluid filled cavity surrounded by a new theca is seen in primary follicles.
C. At puberty only 6×105-8×105 primary follicles are left in each ovary.
D. Oogonia are formed in fetal ovary.
Choose the the correct answer from the options given below:

Arrange the given steps of 'Recombinant DNA Technology' in correct sequence.
A. Transfer of recombinant plasmid into host cell for cloning.
B. Ligation of desired DNA to plasmid.
C. Selection of desired DNA and plasmid.
D. Cutting of desired DNA and plasmid using same restriction enzyme.
Choose the correct answer from the options given below:

Which of the given parameters contribute to an increase in population density?
(A) Mortality
(B) Natality
(C) Immigration
(D) Emigration
Choose the correct answer from the options given below:

Answer the question on basis of passage given below:
Organic compounds containing carbon -oxygen double bonds ( \(C = O\) ) are called carbonyl compounds. These are highly polar molecules. Hence, their boiling points are higher than hydrocarbons and ethers. Aldehydes can be prepared from dehydrogenation or oxidation of alcohols and by reduction of acylhalides. Ketones are prepared by oxidation of secondary alcohols or by hydration of alkynes etc.
Aldehydes and ketones undergo nucleophilic addition reaction with the number of nucleophiles such as HCN, NaHSO3 ammonia derivatives. Carboxylic acids are prepared by the oxidation of primary alcohols, aldehydes and alkenes, by hydrolysis of nitriles. Carboxylic acids are more acidic than alcohols and phenols.

Match List - I with List - II.

LIST I	LIST II
A. Sea anemone and the clown fish	I. Competition
B. Tiger and the deer	II. Predation
C. Flamingoes and resident fishes in south American lakes	III. Commensalism
D. Mycorrhizae	IV. Amensalism
	V. Mutualism

Choose the correct answer from the options given below :

Match List - I with List - II.

List - I (Ore)	List - II (Metal)
(A) Calamine	(1) Copper
(B) Malachite	(II) Aluminium
(C) Siderite	(III) Zinc
(D) Cryolite	(IV) Iron

Choose the correct answer from the options given below :

The magnitude of the electric and magnetic fields in an electromagnetic wave are related as :

Identify the correct statement among the following in the context of a nuclear reactor.