Substances known as 'heredity carriers' are

In $1900$ $A.D.$,three biologists independently discovered Mendel's principles. They are:

An inherited factor that determines a biological characteristic of an organism is called

What is a cross between two genotypes or phenotypes where the source of gametes is reversed in one cross called?

$A$ test cross is performed to determine the:

$A$ cross between two individuals with the same genotype or phenotype,where the source of gametes is reversed in one cross compared to the other,is known as ....