What allele is expressed as a phenotype only when two copies are present in the genotype? A. Dominant allele B. Recessive allele
Biology · Middle School · Tue Nov 03 2020
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The allele that is expressed as a phenotype only when two copies are present in the genotype is called A. Dominant Allele
In genetics, dominance is the phenomenon where one variant of a gene presides better than the other variant, which is called as the recessive allele. The dominant variant is called the dominant allele. These alleles are phenotypically expressed over another allele, and are often seen in the appearance of an organism.