Edward syndrome is on account of .......

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4.Principles of Inheritance and Variation

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Edward syndrome is on account of .......

A

$45$ chromosomes instead of $46$

B

Presence of three chromosomes on $18^{th}$ pair of autosome

C

Presence of three chromosomes on $21^{st}$ pair of autosome

D

Presence of three pair of sex chromosomes

Solution

(b) It has an abnormal karyotype of $10\ [2n + 1]\ (18) = 47$

Standard 12

Biology

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