When observing a chicken skin cell in G₂ under a microscope, you count 156 total chromatids. How many chromosomes does a male chicken have in its sperm cells?
A)312
B)156
C)78
D)39

Question

Quizplus · Accepted Answer

In G₂ phase, each chromosome consists of two sister chromatids. Since there are 156 chromatids, there are 78 chromosomes in the chicken's somatic cells. Male chickens are diploid, so their sperm cells, which are haploid, have half the number of chromosomes, which is 39.

When Observing a Chicken Skin Cell in G₂ Under a Microscope