Match List - I with List - II.

List - I	List - II
(A) Genetic diversity	(I) Mangroves and Coral reef
(B) Species diversity	(II) Rauwolfia vomitoria in different Himalayan ranges
(C) Ecological diversity	(III) Amphibians in Western Ghats
(D) Biodiversity loss	(IV) Dodo in Mauritius

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The B-lymphocytes produce an army of proteins in response to pathogens. Each antibody molecule has four peptide chains, two small called light chains and two longer called heavy chains. Virus-infected cells secrete proteins called interferons which protect non-infected cells from further viral infection. Symptoms of allergic reactions include sneezing, watery eyes, running nose and difficulty in breathing. The use of drugs like anti-histamine, adrenalin and steroids quickly reduce the symptoms of allergy.
Lymphoid organs are the organs where origin and/or maturation and proliferation of lymphocytes occur. The primary lymphoid organs are bone marrow and thymus. After maturation the lymphocytes migrate to secondary lymphoid organs like spleen, lymph nodes, tonsils, Peyer's patches of small intestine and appendix. Heroin commonly called smack is chemically diacetylmorphine which is a white, odourless, bitter crystalline compound. This is obtained by acetylation of morphine, which is extracted from the latex of poppy plant Papaver somniferum.
Which one of the following organs is not a secondary lymphoid organ in humans?

Arrange the steps involved in creating pest-resistant transgenic plants
using RNA interference (RNAi).
(A) Binding of complementary RNAs to form double-stranded RNA
(dsRNA).
(B) Formation of sense and antisense RNA in the host cells.
(C) Silencing of specific mRNA of the nematode.
(D) Introduction of nematode-specific genes into the host plant using
Agrobacterium vectors.
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The typical angiosperm embryo sac at maturity has:

RNAi takes place in all eukaryotic organisms as a method of

The function of germ pore in a pollen grain is:

Who gave the 'chromosomal theory of inheritance'?

Identify the chiral molecule from the following,

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Who popularised the term 'Biodiversity'?

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DNA Fingerprinting
Polymorphism in DNA sequence is the basis of genetic mapping of the human genome as well as of DNA fingerprinting. DNA fingerprinting involves identification of differences in some specific regions in the DNA sequence called repetitive DNA. It works on the principle of polymorphisms in DNA sequences. The repetitive DNA are separated from bulk genomic DNA. The bulk DNA forms a major peak and the other small peaks are referred to as satellite DNA. These repetitive/satellite DNA sequences show a high degree of polymorphisms and form the basis of DNA fingerprinting.
Variable Number of Tandem Repeats are -

Fungi are also known to form symbiotic associations with plants. This is known as-

A short bar magnet of magnetic moment \(m =0.45 J / T\) is placed in a uniform magnetic field of 0.22 T . If the bar is free to rotate in the plane of the field, what is the potential energy of the magnet in stable and unstable equilibrium respectively?

In a coordination entity the central atoms or ions are referred to as: