While solving the problem of sex determination in large number of insects, it was observed that
All eggs lack sex chromosome
Some of the sperms bear the $X-$chromosome
All eggs as well as sperms bear the $X-$chromosome
Some of the eggs bear the $X-$chromosome
Male child will be born if
$X$ -chromosome or $X$ - body was first observed by.............
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
A woman has an $X$-linked condition on one of her $X$ chromosomes. This chromosomes can be inherited by
There are five daughters and no son in a family. It may be due to