Multiple choice

The sex determining chromosomes in a human male are ______ and the sex determining chromosomes in a human female are _______.

  1. XX, XY

  2. XY, XX

  3. XX, XO

  4. XO, XX
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Human females have two of the same kind of sex chromosomes (XX), while males have two distinct sex chromosomes (XY). The XY chromosomal cells create testosterone and anti-müllerian hormone to turn the genderless sex organs into male. With females, their cells excrete estrogen, driving the body down the female pathway. Thereby, determining the sex of the baby.

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