An egg cell has 10 picogram of text{DNA} in i | vedclass

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(D) An egg cell is a haploid $(n)$ cell. Given that the amount of $	ext{DNA}$ in the egg cell is $10$ picogram,the haploid content $(n)$ is $10$ pico

Vedclass · Accepted Answer

$40$ picogram

Vedclass · Answer

(D) An egg cell is a haploid $(n)$ cell. Given that the amount of $	ext{DNA}$ in the egg cell is $10$ picogram,the haploid content $(n)$ is $10$ picogram.An animal cell is diploid $(2n)$. Therefore,the diploid amount of $	ext{DNA}$ in a somatic cell of this animal is $2 	imes 10 = 20$ picogram.During the $S$-phase of the cell cycle,$	ext{DNA}$ replication occurs,doubling the amount of $	ext{DNA}$ from $2C$ to $4C$.At the end of the $G_2$-phase,the cell has completed the $S$-phase and contains $4C$ amount of $	ext{DNA}$.Since $C = 10$ picogram,the amount of $	ext{DNA}$ at the end of the $G_2$-phase is $4 	imes 10 = 40$ picogram.

An egg cell has $10$ picogram of $\text{DNA}$ in its nucleus. How much amount of $\text{DNA}$ will be in this animal,at the end of $G_2$-phase of mitosis?

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