Who reported that Down’s syndrome is due to extra 21^ st chromoso… - Vidyadip

MCQ

Who reported that Down’s syndrome is due to extra $21^{st}$ chromosome

✓
J.L. Down $(1866)$
B
Lejeune $(1959)$
C
Kinefelter $(1942)$
D
Huntington $(1872)$

✓

Answer

Correct option: A.

J.L. Down $(1866)$

a
(a)Down’s syndrome is due to trisomy of $21^{st}$ chromosome was first reported in $1866$ by Langdon Down.

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