Child A has two large X-shaped chromosomes (XX), and Child B has one large X-shaped chromosome and one much smaller Y-shaped chromosome (XY). Child A is _____ and Child B is ____.
A) female; male
B) male; female
C) an identical twin; a fraternal twin
D) a fraternal twin; an identical twin

Question

Quizplus · Accepted Answer

Child A has two X chromosomes, indicating that they inherited one X chromosome from each parent, which makes them female. Child B has one X chromosome and one Y chromosome, indicating that they inherited the X chromosome from their mother and the Y chromosome from their father, making them male.

Child a Has Two Large X-Shaped Chromosomes (XX), and Child