Question

In female kangaroos (marsupials),Multiple Choice The paternal X chromosome is always inactivated into a Barr body. neither the maternal or paternal X chromosome is inactivated into a Barr body. either the maternal or paternal X chromosome is randomly inactivated into a Barr body. both the maternal and paternal X chromosomes are inactivated into a Barr body, but only in about 50% of the total cells. the maternal X chromosome is always inactivated into a Barr body.

Answer 1

The paternal X chromosome is always inactivated into a Barr body.

Step-by-step explanation:

Marsupials also balance the number of X linked genes present in male and females by inactivation of one X chromosome in their females. Kangaroos and other marsupials exhibit inactivation of the paternal X chromosome. In marsupials, the paternal X chromosome is always inactivated and is present in the form of the Barr body in the cells of the females.