Tuesday, 7 September 2021

KLINEFELTERS SYNDROME

This syndrome was first discovered by H.F. Klinefelter in the year 1942.

This genetic disorder is due to the presence of an additional copy of the X-chromosome .

This is a sex chromosomal disorder which may inherited in two ways .

I- When a normal ovum containing 22+X fertilizes with abnormal sperm 22+XY .

II- When a normal sperm containing 22+Y fertilizes with  abnormal ovum 22+XX . Then Klinefelter's syndrome occurs .

Persons with this syndrome have 47 chromosomes .

They are usually sterile males , tall , obese with long limbs , high pitched voice ,under developed genetalia and have feeble breast development.

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