Match List-I with List-II

List-I (Contraceptive methods)	List-II (Examples)
(A) Non-medicated IUD	(I) LNG-20
(B) Hormone releasing IUD	(II) Multiload 375
(C) Copper releasing IUD	(III) Vaults
(D) Barrier method	(IV) Lippes loop

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If 50000 J energy available to primary producer, then energy available to tertiary consumer will be:

De Vries gave his mutation theory on organic evolution while working on-

Match List-I with List-II

List-I Scientists	List-II Discoveries
(A) Walter Sutton and Boveri	(I) Linkage and recombination of genes on a chromosome
(B) Gregor Mendel	(II) Chromosomal theory of inheritance
(C) Thomas Hunt Morgan	(III) Law of inheritance
(D) Alfred Sturtevant	(IV) Genetic map

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Read the following passage carefully and answer the given questions.
Some strains of Bacillus thuringiensis produce proteins that kill certain insects such as lepidopterans (tobacco budworm, armyworm), coleopterans (beetles) and dipterans (flies, mosquitoes). B. thuringiensis forms protein crystals during a particular phase of their growth. 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 (a-1-antitrypsin) used to treat emphysema. In 1997, the first transgenic cow, Rosie, produced human protein-enriched milk (2.4 grams per litre). The milk contained the human alpha-lactalbumin and was nutritionally a more balanced product for human babies than natural cow-milk. A nematode Meloidegyne incognitia infects the roots of tobacco plants and causes a great reduction in yield. A novel strategy was adopted to prevent this infestation which was based on the process of RNA interference (RNAi). This method involves silencing of a specific mRNA due to a complementary dsRNA molecule that binds to and prevents translation of the mRNA (silencing). Biopiracy is the term used to refer to the use of bio-resources by multinational companies and other organisations without proper authorisation from the countries and people concerned without compensatory payment. ELISA is based on the principle of antigen-antibody interaction. Infection by pathogen can be detected by the presence of antigens (proteins, glycoproteins, etc.) or by detecting the antibodies synthesised against the pathogen.
Biopiracy is the term used to refer:

Down's syndrome is a genetic disorder. It is due to:

Double fertilisation is unique to:

Adenosine deaminase deficiency is caused by ________ of the gene.

A spherical balloon has a variable radius. The rate at which its volume is increasing with respect to its radius when the radius is 5 cm is:

The kinetic energy of an \(\alpha\)-particle incident on gold foil is reduced to half of its initial value. How does the distance of closest approach change?

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Chloroform is a very useful solvent for oils, fats and waxes and many organic compounds. It can also be used for preserving biological specimens. Chloroform was used as a general anaesthetic in surgery for a long time but because of its toxic nature, it is no longer used these days.
Why is chloroform stored in dark coloured air tight bottles ?

Given that the value of a determinant of order three is zero; which one of the following is not correct?

The condition where one species is harmed whereas the other is unaffected is called.