Which of the following are found at the same place on a chromosome but represent different forms of a gene?

a. protein

b. chromatin

c. chromatid

d. allele

Alleles are found at the same place on a chromosome but represent different forms of a gene. Correct answer:D

This alternative form of a gene is located at a specific position on a specific chromosome.

Humans have two alleles at each genetic locus, and as a result they are called diploid organisms.