Different alleles do not always produce equal outward effects or phenotypes. One allele can be dominant and mask the effect of a second recessive allele in a heterozygous organism that carries two ...

Body color in fruit flies is an example of a gene with two alleles: a dominant allele for brown body color, and a recessive allele for black body color. The brown body color allele can be ...

Similar genes occupy the same position on both chromosomes in the pair. Alleles can be dominant or recessive. Dominant alleles will be expressed even if a recessive allele is present. Recessive ...

Heterozygous Describes an individual who has inherited two different alleles of the same gene from ... individual's genotype for a particular characteristic Recessive An allele whose effect ...