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Questions  >>  CBSE XII  >>  Biology
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Q)

If a nucleosome contain 200 bps. How many nucleosome are there in a mamalian cell? What changes occur to beads of string of D.N.A during metaphase?

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A)
Number of nucleosome = $\frac{\text{Number of base pairs in a mammalian cell}}{\text{Number of base pairs in one nucleosome}}$
$\qquad \qquad \qquad = \frac{ 6.6 \times 10^9}{200}$
$\qquad \qquad \qquad = 3.3 \times 10^7$ nucleosomes
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