Question

Which one of the following symbols represents a Turner’s syndrome?

पर्याय

• AA XO

• AA XYY

• AA XXY

• AA XXX

Answer 1

AA XO

Explanation:

Turner’s syndrome is characterized by the presence of only one X chromosome and no second sex chromosome (monosomy X), leading to the karyotype 44 + XO (total 45 chromosomes). Individuals with Turner’s syndrome are phenotypically female, but they are sterile and show characteristics such as poorly developed ovaries, webbed neck, broad chest, and underdeveloped breasts due to the absence of estrogens. This condition is caused by the absence of one sex chromosome, hence the symbol XO is used to represent Turner’s syndrome.