Multiple choice

A child who inherits an X-chromosome from father will be a _____.

  1. boy

  2. girl

  3. any of the two

  4. cannot be determined
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Fathers have one X and one Y chromosome (XY). When they pass an X chromosome to their child, the child will be female (XX) because the mother always contributes an X chromosome. If the father passes his Y chromosome, the child will be male (XY).

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