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5.Molecular Basis of Inheritance
normal
The human chromosomes are divided into $7$ groups, $B$-chromosomes are
A
$6-12$
B
$1-3$
C
$13-15$
D
$4-5$
Solution
(d) Human chromosomes are devided into $7$ groups $(A-G)$ on depending upon position of centromear and relative length of two arms.
In $B$-group, $4$ th and $5$ th chromosomes are placed. These are submetacentric.
Standard 12
Biology
