Principle of Inheritance and VariationMedium
Question
XO-chromosomal abnormality in human beings causes
Options
A.Turner′s syndrome
B.Down′s syndrome
C.Klinefelter′s syndrome
D.none of the above
Solution
Turner′s syndrome is caused due to the missing X chrosomes. The genotype is therefore XO instead of normal XX and the sufferer person possesses 45 chromosomes instead of 46. patients with this condition can bast be described as incompletely developed females, althogh there are often no obvious external differences compared with normal females. Affected femals lack ovaries so they are infertile.
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