KVPY Government Jobs Exams

The length of one complete turn of a DNA double helix is-
(A) 34 Å (B) 34 nm (C) 3.4 Å (D) 3.4 μm

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KVPY Other Question

Nocturnal animals have retinas that contain-
(A) a high percentage of rods to increase sensitivity to low light conditions
(B) a high percentage of cones so that nocturnal color vision can be improved in low light conditions
(C) an equal number of rods and cones so that vision can be optimized
(D) retinas with the photoreceptor layer present in the front of the eye to increase light sensitivity The number of rectangles that can be obtained by joining four of the twelve vertices of a 12-sided regular
polygon is-
(A) 66 (B) 30 (C) 24 (D) 15