A gene has two sets of DNA.
The answer is an allele.
A gene pair is called an allele. An allele is an alternative form of a gene that is located on a specific chromosome at a specific place.
That is called heterozygous or it is called a hybrid.
dominant
The chromosomes in a pair carry the same genes in the same places. There are different versions of the same gene. These different versions of the same gene are called alleles.
allele
Having two different alleles is said to be....?-Heterozygous
the liver gene
Nitrogen base
The answer is an allele.
Homozygous
It's called law of independent assortment.