What Does the 23rd Pair of Chromosomes Determine?
Answer – In humans, the 23rd pair of chromosomes are the sex chromosomes, and they determine an individual’s biological sex.
Explanation:
The 23rd pair of chromosomes comprise the special chromosomes X and Y. Females have a pair of X chromosomes (46 [23 pairs], XX), whereas males have one X and one Y chromosome (46, XY). The presence or absence of the Y chromosome determines whether an individual is biologically male or female. This is because the genes necessary to initiate male development are present on the Y chromosome. The X chromosome is larger than the Y chromosome. The combination of these chromosomes is inherited by one’s parents during sexual reproduction.
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