The phenotypic ratio obtained in quantitative inheritance of a dihybrid cross is
$1 : 2 : 1$
$1 : 4 : 6 : 4 : 1$
$1 : 6 : 15\ 20 : 15 : 6 : 1$
$9 : 3 : 3 : 1$
The gene which increases the frequency of mutation in other gene is referred to as
If Mendel had studied the seven traits using a plant with $12$ chromosomes instead of $14$, in what way would his interpretation have been different
$A$ normal woman, whose father had colour blindness, married a normal man. What is the chance of occurrence of colour blindness in the progeny?
Which of the following type of mutation involves the reverse order of genes in a chromosome?
Discontinuous variations are