KVPY Government Jobs Exams

Estimate the order of the speed of propagation of an action potential or nerve impulse -
(A) nm/s (B) micron/s (C) cm/s (D) m/s

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KVPY Other Question

The distance between two consecutive DNA base pairs is 0.34 nm. If the length of a chromosome is 1 mm,
the number of base pairs in the chromosome is approximately-
(A) 3 million (B) 30 million (C) 1.5 million (D) 6 million Arrange the expansion of
n
1/ 4
1/ 2
2x
1 x 



 + in decreasing powers of x. Suppose the coefficient of the first
three terms form an arithmetic progression. Then the number of terms in the expansion having integer
powers of x is-
(A) 1 (B) 2 (C) 3 (D) more than 3