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In animals exhibiting internal fertilization:
1. There is high synchrony between the two sexes
2. The chances of desiccation of the embryo is high
3. The male gamete is motile
4. Vulnerability to predators is increased

Which of the following are correct regarding linked genes?
I. are located near each other on the same chromosome.
II. violate the law of independent assortment
III. segregate together during meiosis
(1) Only I and II
(2) Only I and III
(3) Only II and III
(4) I, II, III

Identify the incorrect matched pair:
1. Trichoderma harzianum: Cyclosporin A
2. Monascus purpureus: Statins
3. Aspergillus niger: Citric acid
4. Streptococcus pyogenes: Clot buster

In plants, somatic embryo regeneration is induced usually by a relatively high concentration of:
(1) Benzyl amino purine
(2) IAA
(3) 2,4 - D
(4) NAA

In the screening process during rDNA experiments, clones that metabolize $\beta$-gal turn:
1. Colorless
2. Blue
3. Yellow
4. Green

The principal psychoactive principle present in the hemp plant, Cannabis sativa, is:
1. acetyl salicylic acid
2. diacetylmorphine
3. tetrahydrocannabinol
4. lysergic acid dimethylamide
 

Percentage of free space in cubic close packed structure and in body centered packed structure are respectively:
1. 48% and 26%
2. 30% and 26%
3. 26% and 32%
4. 32% and 48%

A and B are two concentric metallic shells. If A is positively charged and B is earthed, then electric
                                             
1.  Field at common centre is non-zero
2.  Field outside B is nonzero
3.  Potential outside B is positive
4.  Potential at common centre is positive

$\mathrm{In} \mathrm{the} \mathrm{given} \mathrm{circuit} \mathrm{power}$
$\mathrm{developed} \mathrm{in} 1\mathrm{k\Omega } \mathrm{resistor} \mathrm{is}$
     
1.  36 mW
2.  12 mW
3.  144 mW
4.  64 mW