You are observing a number of human uterine cells with a microscope. In the nucleus of each cell, you can see a mass of condensed heterochromatin at one side of the nucleus. Which chromosome is likely to be included in the condensed heterochromatin?

Question

Quizplus · Accepted Answer

The mass of condensed heterochromatin observed at one side of the nucleus in human uterine cells is likely to be a Barr body, which is an inactivated X chromosome. This phenomenon occurs in females who have two X chromosomes, with one being inactivated to compensate for the dosage difference between males (XY) and females (XX).

You Are Observing a Number of Human Uterine Cells with a Microscope