Question

females are sterile as ovaries are rudimentary besides other features when their genetic makeup is
a) AA+XXX
b) AAA+XXX
c) AA+XXY
d) AA+ XO​

Answer 1

Explanation:

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➡️Absence of one sex chromosome causes Turner’s syndrome. This disorder is due to monosomy (2n-1).

➡️ It appears due to fusion of abnormal egg (22 + 0) and a normal sperm (22 + X) or a normal egg (22 + X) and abnormal sperm (22 + 0).

➡️ People suffering from Turner’s syndrome have 45 chromosomes instead of 46 chromosomes.

➡️Such females are sterile as ovaries are rudimentary besides other features including lack of other secondary sexual characters.