In a dihybrid cross $80$ plants are obtained. The ratio of homozygous and heterozygous shall be
$40:40$
$10:70$
$20:60$
$30:50$
A $1: 1$ phenotypic ratio in a test cross indicates that the
Punnet square is a representation to calculate
Test cross involves
Cross between the pure tall plant from $F_1$ and dwarf plant will give
When an individual is having both the alleles of a contrasting character, it is said to be