In gel electrophoresis, the separated DNA fragment can be visualized -

\((p+q)^2=p^2+2 p q+q^2=1\) represents Hardy Weinberg equation. It is used in:

Which of the following statements are incorrect with respect to nucleotides ?
(A) Purines and pyrimidines are nitrogenous bases.
(B) Nucleotides and nucleosides are same.
(C) Phosphate group is linked to - OH of 5' C of a nucleoside through phosphoester linkage.
(D) In RNA, every nucleotide residue has an additional - OH group present at 3' position in the ribose.
(E) Thymine is an example of Pyrimidine.
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The detritus food chain (DFC) has at the first tropic level.

Arrange the following geological periods in chronological order.
(A). Cretaceous
(B). Triassic
(C). Permian
(D). Jurassic
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Match List - I with List - II.

List - I	List - II
(A) Cloning vector	(I) Sea weeds
(B) β-galactosidase	(II) Selectable marker
(C) Agarose	(III) Ti-plasmid of Agrobacterium tumifaciens
(D) \(a m p^{ R }\) in pBR322	(IV) Chromogenic screening

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Which of the followings were dominant during the 'Jurassic' period?
(A) Ferns
(B) Seed ferns
(C) Conifers
(D) Dinosaurs
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Which one of the following structures is not the male sex accessory duct in human?

The value of \(\tan ^{-1}(2)+\tan ^{-1}(3)\) is equal to

The electric potential due to an electric dipole depends on

A parallel beam of monochromatic light of wavelength \( 460 \text{ nm} \) passes through a long slit of width \( 0.1 \text{ mm} \). What is the angular divergence in which most of the light is diffracted ?

Choose the correct answer from the options given below:
A. Equation of the line passing through the point (1, 2, 3) and parallel to the vector \(3 \hat{i}+2 \hat{j}-2 \hat{k}\) is \(\frac{x-1}{3}=\frac{y-2}{2}=\frac{y-3}{-2}\)
B. Equation of line passing through (1, 2, 3) and parallel to the line given by \(\frac{x+3}{3}=\frac{4-y}{5}=\frac{z+8}{6}\) is \(\frac{x-1}{3}=\frac{y-2}{5}=\frac{z+3}{6}\).
C. Equation of line passing through the origin and (5, -2,3) is \(\frac{x}{5}=\frac{y}{-2}=\frac{z}{3}\).
D. Equation of plane passing through the point (1, 2, 3) and perpendicular to the line with direction ratio's 2, 3, -1 is 2(x - 1) + 3(y - 2) - (z - 3) = 0.
E. Equation of plane with intercepts 2, 3 and 4 on x, y and z-axis respectively is 2x + 3y + 4z = 1

Which of the following in NOT true for Bt toxin ?
(A) It is produced by Bacillus thuringiensis
(B) It is produced in active form
(C) It exist as inactive protoxin
(D) It is used to produce nematode-resistant plants
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