Which one of the following diagnostic techniques is based on the principle of antigen-antibody interaction?

Match List-I with List-II

List-I (Contraceptive methods)	List-II (Respective actions)
(A) Diaphragms	(I) Inhibit ovulation and implantation
(B) Contraceptive pills	(II) Increase phagocytosis of sperm within uterus
(C) Intra Uterine Devices	(III) Absence of menstrual cycle and ovulation following parturition
(D) Lactational amenorrhea	(IV) They cover the cervix blocking the entry of sperms

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Which of the following are the salient features of Human Genome project?
(A) The average gene consists of 3000 bases, but sizes vary greatly.
(B) Chromosome 1 has most genes (2968), and the Y has the fewest (231).
(C) The total number of genes is estimated at 30,000- much lower than previous estimates of 80,000 to 1,40,000 genes.
(D) Repetitive sequences are stretches of DNA sequences that are repeated many times, sometimes hundred to thousand times.
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A combination of progestogen-estrogen is used in:

ABO blood groupings are controlled by the gene I. This 'ABO' blood grouping in human beings is an example of -

Biolistics or gene gun method of transferring the gene of interest into host organism is suitable for:

Match List-I with List-II

List-I (Structures)	List-II (Characteristics)
(A) Heterochromatin	(I) A set of positively charged basic proteins
(B) Nucleosomes	(II) Densely packed and inactive genetic material
(C) Histones	(III) Transcriptionally active genetic material
(D) Euchromatin	(IV) DNA is wrapped around the histone octamer to formthis structure

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Match List I with List II

List I	List ll
(A) Maize	(I) Perisperm
(B) Black Pepper	(II) False fruit
(C) Ground Nut	(III) Albuminous seed
(D) Strawberry	(IV) Ex-albuminous seed

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Read the passage carefully and answer the Questions
\(KMnO _4\) is prepared by the fusion of \(MnO _2\) with an alkali metal hydroxide and an oxidizing agent like \(KNO _3\) to give a dark-green manganate ion which disproportionate to give permanganate as follows.
\(\begin{array}{l}2 MnO _2+4 KOH + O _2 \rightarrow 2 K_2 MnO _4+2 H _2 O \\ 3 K_2 MnO _4+4 H ^{+} \rightarrow 2 KMnO _4+ MnO _2+2 H _2 O \end{array}\)
On heating \(K _2 MnO _4\) decomposes at 513 K to give \(K _2 MnO _4\). Permanganate ion is tetrahedral and diamagnetic
Acidified \(KMnO _4\) acts a strong oxidizing agent which oxidizes oxalic acid, ferrous ions, nitrite ion and iodides.
When one mole of \(KMnO _4\) is used for the oxidation of oxalic acid, how many moles of \(CO _2\) will be produced?

The number of all possible matrices of order \(2 \times 2\) with each entry ' \(a\) ', ' \(b\) ' or ' \(c\) ' is :

Helium gas is filled in a transparent balloon which is kept in air. The balloon behaves as:

Match List I with List II

LIST I	LIST II
A. Tubectomy	I. Barrier method
B. Copper ions	II. Surgical method of sterilisation in human male.
C. Cervical Cap	III. Surgical method of sterilisation in human female.
D. Vasectomy	IV. Suppress motility of sperms

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If A is a square matrix of order 3 and |A| = 5, then | adj A| is: