Multiple choice

An egg cell has 5 pg of DNA in its nucleus. How much amount of DNA will be in this animal at the end of G2 phase mitosis?

  1. 2.5 pg

  2. 5 g

  3. 5 pg

  4. 20 pg
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The period after DNA synthesis has occurred but prior to the start of prophase, the cell synthesizes proteins and continues to increase in size. In a gamete, DNA is n. But in other cells, it is 2n. DNA gets double after G2 phase, so it will become 4n. So, 4 x 5 pg = 20 pg. 

Keep practicing — related questions