Question

The nuclear DNA content of a single sperm cell in Drosophila melanogaster is approximately 0.18 picogram. What would be the expected nuclear DNA content of a primary spermatocyte in Drosophila

Answer 1

The correct answer is - 0.72 pg.

Step-by-step explanation:

A we know that, genetic material present in one primary spermatocyte divides in between four sperm cells that means that each sperm cell has 25 percent of DNA or genetic material of the primary spermatocyte.

Given:

1 sperm cell = 0.18 nuclear DNA

So,
`DNA content of one sperm cell = (\text DNA content of primary spermatocyte)/(4)`

0.18*4 = DNA content of primary spermatocyte

DNA content of primary spermatocyte = 0.72 picogram