Q.

A pair of contrasting characters controlling the same trait is called -

A. factors
B. loci
C. allele
D. lineage
Answer» C. allele
Explanation: An allele is one of a pair of genes that appear at a particular location on a particular chromosome and control the same characteristic, such as blood type or colorblindness. Alleles are also called alleleomorphs. If the two alleles are identical, the individual is called a homozygote; when the two alleles are different, the individual is a heterozygote.
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