Biology GK · Q321

Gentics and Evoloution

Competitive Exams · Biology GK · question 321

Q321

Down's syndrome is due to

A.

chromosome number increase in 21^st pair autosome

Answer

B.

chromosome number decreases in 21^st pair autosome

C.

chromosome number increases in 18^th pair autosome

D.

chromosome number decreases in 18^th pair autosome

Answer: Option A

Solution

Answer: Option A

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