Question

a variant of a gene for which an individual must be homozygous in order for it to influence the appearance of the organism is a ?

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Answer 1

Answer:

An individual's genotype for that gene is the set of alleles it happens to possess. ... An organism in which the two copies of the gene are identical — that is, have the same allele — is called homozygous for that gene. An organism which has two different alleles of the gene is called heterozygous.