How many chromosomes does a Human have? And how is a baby's gender determined? (Example: For the baby to be a boy, it would need what kind of chromosome? For it to be a girl, what chromosome would be needed?)

Question

Sweetums

Physics

8 May, 06:57

How many chromosomes does a Human have? And how is a baby's gender determined? (Example: For the baby to be a boy, it would need what kind of chromosome? For it to be a girl, what chromosome would be needed?)

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Answers (2)

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Cindy Riggs · Answer 1

Humans have a total of 46 chromosomes or 23 pairs. A baby's gender is determined by its x and y chromosomes if its double x then it's a female if its an x and a y it's a male. The father determines all this since he's the one that holds the y.

Terry Blackburn · Answer 2

A human has 46 chromosome pairs. For a baby to be a boy its needs to have a xy chromosome and for it to be a girl it has to be xx.