Question

what is an allele?
a) the position of a nucleotide
b) a type of cell
c) an alternative form of a gene
d) a type of chromosome

Explanation:

An allele is an alternative form of a gene. It represents different versions of the same gene that can result in variations in a trait. For example, for a gene controlling flower color, different alleles can lead to different colors. The position of a nucleotide is related to DNA sequence, a cell has many genes and alleles are not cells, and chromosomes carry multiple genes and alleles are not a type of chromosome.

Answer:

C. An alternative form of a gene