There are five daughters and no son in a family. It may be due to

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4.Principles of Inheritance and Variation

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There are five daughters and no son in a family. It may be due to

A

Father produced only $X$ containing sperms

B

Father produced no sperms at all

C

$Y$ type sperms are weaker and not effective

D

By chance each time $X$ sperm fertilized the egg

Solution

It's Obvious

Standard 12

Biology

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