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5.Molecular Basis of Inheritance
normal
The somatic chromosome complement in all human being is
A
$21$ pairs of autosomes and one pair heterosomes
B
$23$ pairs of autosomes and one pair of heterosomes
C
$22$ pairs of autosomes and one pair of heterosomes
D
$22$ pairs of autosomes and one pair of $XY$ chromosomes
Solution
(c)$22$ pairs of chromosomes are called autosomes, which decide the somatic characters in both sex, while $23^{rd}$ pair of chromosomes are called hetrosomes or allosomes.
Standard 12
Biology