Question

turner syndrome is due to a(n) ____________. a extra sex chromosome b missing sex chromosome c extra autosome d missing autosome

Explanation:

Turner syndrome is a genetic disorder that affects females. It occurs when one of the X chromosomes (sex chromosomes) is missing or partially missing. Autosomes are non - sex chromosomes, and Turner syndrome is not related to autosome abnormalities. An extra sex chromosome would lead to different disorders (e.g., Klinefelter syndrome in males with an extra X chromosome).

Answer:

B. missing sex chromosome