A fruit fly is heterozygous for sex-linked genes when meted with normal female fruit fly, the males specific chromosome will enter egg cell in the proportion
$1:1$
$2:1$
$3:1$
$7:1$
Persons who are colourblind can not distinguish
A person with blood group$-A$ has
Single gene can exhibit multiple phenotypic expression, this is called.....
Mongoloid condition is related to or In mongolism a patient shows