Mendel’s law of sagregation is applicable to
Dihybrid cross only
Monohybrid cross only
Both dihybrid and monohybrid cross
Dihybrid but not monochybrid
Percentage of recessive phenotype in a cross between $pp$ and $Pp$, when $P$ is dominant, $p$ recessive
Mendel performed test cross to know the
A $1: 1$ phenotypic ratio in a test cross indicates that the
Primary source of allelic variation is
An organism's genetic constitution is called its