Question

An allele is defined as __________.

• A. a chromosome
• B. a versions of a gene
• C. a specific form of a gene
• D. a physical characteristic

Answer 1

The correct option is B

a versions of a gene

An allele is one of two or more versions of a gene. An individual inherits two alleles for each gene, one from each parent. If the two alleles are the same, the individual is homozygous for that gene. If the alleles are different, the individual is heterozygous.