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4.Principles of Inheritance and Variation
normal
A hereditary disease which is never passed on from father to son is
A
$X$ - chromosomal linked disease
B
Autosomal linked disease
C
$Y-$ chromosomal linked disease
D
None of the above
Solution
Man has only one $X$-chromosomes that is inherted to has daughter. Therefore, a heredftary disease, which is $X$-chromosomal linked, is never passed on from father to son.
Standard 12
Biology
