Tizo and Levan's contribution is very significant because they

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5.Molecular Basis of Inheritance

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Tizo and Levan's contribution is very significant because they

A

Gave the number of human chromosomes

B

Pointed out mutational changes

C

Identified Barr bodies

D

Detected sex linkage

(AIPMT-1993)

Solution

(a) Tizo and Levan $(plant cytologists)$ in $1956$ enabled the human geneticists to as certain the correct chromosome number.

Standard 12

Biology

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