Question

What do x and y chromosomes affect

Answer 1

The extra X and/or Y chromosome can affect physical, developmental, behavioral, and cognitive functioning. Common physical features may include tall stature, lack of secondary pubertal development, small testes (hypogonadism), delayed pubertal development, and breast development (gynecomastia) in late puberty.

Hope this helps, mark brainliest

Answer 2

Answer: They effect the gender of the baby

Explanation: if the outcome is xx its a girl it itfs xy its a boy