Answer:
An allele is a form of a gene. For example, in humans, the ABO gene for the ABO blood group is located on chromosome 9,
Step-by-step explanation:
An allele is a viable DNA (deoxyribonucleic acid) coding that occupies a given locus on a chromosome. Usually alleles are sequences that code for a gene, but sometimes the term is used to refer to a non-gene sequence. An individual's genotype for that gene is the set of alleles it happens to possess.
6.6m questions
8.7m answers