Question

Alleles are

• A. Alternate forms of a gene
• B. Homologous chromosome
• C. Pair of sex chromosome
• D. None of the above

Answer 1

The correct option is A Alternate forms of a gene

An allele can be defined as one of a number of alternative forms of the same gene or same genetic locus. Sometimes, different alleles can result in different observable phenotypic traits, such as different pigmentation. However, most genetic variations result in little or no observable variation. The word "allele" is a short form of allelomorph ("other form"), which was used in the early days of genetics to describe variant forms of a gene detected as different phenotypes.