Question

If egg of an organism has $10pg$ of DNA in its nucleus. How much DNA would a diploid cell of same organism have in $G_2$ phase of meiosis?

• A. $10pg$
• B. $5pg$
• C. $2pg$
• D. $40pg$

Answer 1

The correct option is D $40pg$

The egg of an organism is haploid, hence in the given question, 10pg refers to the haploid content of DNA. It means the DNA content of a diploid cell of the same organism would be 20pg. Now, when this diploid cell undergoes meiosis, during the S-phase of its interphase, its DNA content doubles to become 40pg. In the G2 phase which follows the S-phase, we can find its DNA content to be 40pg.

So, the correct answer is '40pg'.