Number of linkage group in Pisum sativum is
$2$
$5$
$7$
$9$
Which is the example of supplementary gene
Haemophilia is caused due to lack of
Barr body in mammals represents
The average ratio of male to female individuals based on $XX$ and $XY$ type of sex determination, in total world of human population is
Who has putforth Mendel's conclusions in the form of laws