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4.Principles of Inheritance and Variation
medium
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
Similar Questions
Match the items of column $I$ with column $II$
Column $I$ | Column $II$ |
$(a)\; XX-XO$ method of sex determination | $(i)$ Turner's syndrome |
$(b)\; XX-XY$ method of sex determination | $(ii)$ Female heterogametic |
$(c)$ Karyotype$-45 $ | $(iii)$ Grasshopper |
$(d)\; ZW-ZZ$ method of sex determination | $(iv)$ Female homogametic |
Select the correct option from the following