Question

What are genes that code for a pair of contrasting characters called?

Answer 1

Alleles:

1. A variant of the same nucleotide sequence that encodes the synthesis of a gene product at the same location on a lengthy DNA molecule is known as an allele.
2. If a person contains a pair of the same alleles, then it is called homozygous.
3. If the two alleles are different, it is termed as heterozygous.