Which one of the following conditions correctly describes the manner of determining the sex?
Homozygous sex chromosomes $(ZZ) $ determine female sex in birds.
$XO$ type of sex chromosomes determine male sex in grasshopper.
$XO$ condition in humans as found in Turner’s syndrome, determines female sex.
Homozygous sex chromosomes $(XX)$ produce male in Drosophila.
Determination of sex of a child depends upon
In man the normal number of chromosomes is
How is sex determined in Honey bee ?
What type of sex determination is observed in grass hopper ?
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