Question

Multiple alleles are situated at

• A. Homologous chromosme at same locus
• B. Homologous chromosome at different locus
• C. Non-homologous chromosome at different locus
• D. None of the above

Answer 1

The correct option is A Homologous chromosme at same locus

Alleles are alternative forms of a gene. They are responsible for differences in phenotypic expression of a given trait. When a gene exists in three or more allelic forms it is called multiple allele. Homologous chromosomes are chromosome pairs, one from each parent. They are similar in length, gene position and centromere location. Multiple alleles are situated in homologous chromosome at the same locus. Thus the correct answer is option A.