Match List-l with List-ll

List-l (Birth control methods)	List-II (Features)
(A) Diaphragms	(I) Removal of vas deferens
(B) Lactational amenorrhea	(II) Increase phagocytosis of sperms
(C) Vasectomy	(III) Absence of menstrual cycle and ovulation following parturition
(D) IUDs	(IV) Cover the cervix and blocks the entry of sperm

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Match List - I with List - II.

List I	List ll
(A) Penicillium notatum	(I) Wine
(B) Acetobacter aceti	(II) Curd
(C) Saccharomyces cerevisiae	(III) Antibiotics
(D) Lactobacillus	(IV) Acetic acid

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Identify the correct sequence of formation of embryo sac or female gametophyte in flowering plants?
(A) Female gametophyte
(B) 2-nucleate embryo sac
(C) Megaspore mother cell
(D) 4-nucleate embryo sac
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Read the following passage carefully and answer the given questions.
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.
Heroin, commonly called smack and chemically is -

Arrange the given steps involved in Polymerase Chain Reaction.
(A) Annealing
(B) Extension
(C) Denaturation
(D) Amplification
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Which Assisted Reproductive Technology (ART) is more suitable when the male partner has low sperm count?

The rate of biomass production is called productivity and it is expressed in terms of:

If \(KMnO_4\) is reduced by oxalic acid in the acidic medium, then the oxidation number of \(Mn\) changes from:

A proton and an alpha particle enter a uniform magnetic field with the same velocity and move along circular paths. The time period of the alpha particle will be:

If \(y=\log _e\left(\frac{e^2}{x^2}\right)\) for \(x \neq 0\), then \(\frac{d^2 y}{d x^2}\) equals

In the following matrix equation, the value of \(x\) is :
\(\left[\begin{array}{cc}x+y & 4 \\ -5 & 3 y\end{array}\right]=\left[\begin{array}{cc}3 & 4 \\ -5 & 6\end{array}\right]\)

Sediment left after secondary treatment of sewage/waste is known as:

Arrange in increasing order of number of species to represent global biodiversity?
(A) Molluscs
(B) Crustaceans
(C) Insects
(D) Other animal groups
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