Question

if this woman has a son, what sex chromosome would she give her son?
unknown
y
x

Explanation:

Human females have two X chromosomes (XX). When passing on sex chromosomes to offspring, they can only contribute an X chromosome. Males have one X and one Y chromosome (XY). The sex of the child is determined by the sperm. If the sperm contributes a Y chromosome, the child is male. But the mother, with her XX chromosomes, can only give an X chromosome to her son.

Answer:

X