Which of these cells, the egg or the sperm, determines the sex of the offspring?

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Multiple Choice

Which of these cells, the egg or the sperm, determines the sex of the offspring?

Explanation:
At fertilization, the sex of the offspring is determined by the chromosome carried by the sperm. The egg contributes an X chromosome every time, while sperm can carry either an X or a Y. A sperm with X yields XX (female), and a sperm with Y yields XY (male). So the sperm is the decisive contributor for the offspring’s sex. The egg cannot determine sex on its own since it cannot provide a Y chromosome.

At fertilization, the sex of the offspring is determined by the chromosome carried by the sperm. The egg contributes an X chromosome every time, while sperm can carry either an X or a Y. A sperm with X yields XX (female), and a sperm with Y yields XY (male). So the sperm is the decisive contributor for the offspring’s sex. The egg cannot determine sex on its own since it cannot provide a Y chromosome.

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