Question

Describe how the sex of a new born individual is determined in humans.

Accepted Answer

Sex is determined by chromosomes contributed by the father: XX produces female, XY produces male.. - Human females have two X chromosomes ($XX$) and produce eggs containing only X chromosomes. - Human males have one X and one Y chromosome ($XY$) and produce two types of sperms: 50% carrying X and 50% carrying Y. - If a sperm carrying an X chromosome fertilizes the egg, the child will be female ($XX$). - If a sperm carrying a Y chromosome fertilizes the egg, the child will be male ($XY$). Thus, sex is determined genetically by the father's gamete.

Sex Determination in Humans

Explanation

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