alleryAn **allele** is best defined as:
AA pair of homologous chromosomes
BAn alternative form of a gene occupying the same locus on a homologous chromosome
CA complete set of genes from one parent
DA type of gamete cell
Answer & Solution
Correct answer: B. An alternative form of a gene occupying the same locus on a homologous chromosome
Alleles (or allelomorphs) are two or more alternative forms of a given gene located at identical positions (loci) on homologous chromosomes — e.g. T and t for plant height.
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