Which chromosomes are the sex chromosomes in humans?

Prepare for the PLTW Biomedical Science Test. Study with flashcards and multiple choice questions, each question comes with hints and explanations. Get ready for your exam!

Multiple Choice

Which chromosomes are the sex chromosomes in humans?

Explanation:
The main idea is that the sex chromosomes determine human sex. In humans, the sex chromosome pair is X and Y. Females typically have two X chromosomes (XX), while males have one X and one Y (XY). The Y chromosome carries genes like SRY that drive male development, and the X chromosome carries many essential genes needed by both sexes. The other options refer to autosomes, which are the non-sex chromosomes, so they don’t determine sex. Therefore, the sex chromosomes are X and Y.

The main idea is that the sex chromosomes determine human sex. In humans, the sex chromosome pair is X and Y. Females typically have two X chromosomes (XX), while males have one X and one Y (XY). The Y chromosome carries genes like SRY that drive male development, and the X chromosome carries many essential genes needed by both sexes. The other options refer to autosomes, which are the non-sex chromosomes, so they don’t determine sex. Therefore, the sex chromosomes are X and Y.

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