Question

Which phrase best describes dominance in genetics?

-an allele that is expressed more often than others

-an allele that is always expressed over another variation

-an allele that is never expressed as a trait

-an allele that can be expressed 50% of the time

Answer 1

An allele that is always expressed over another variation is known as dominant allele,

A dominant allele is an allele that can show the dominance or expression over another allele when both are present together and this is known as low of dominance given by Mendel

One of the most prominent and important examples of dominance is in peas. This is based on an experiment that Mendel did during his research.

Mendel addressed a series of contrasting traits such as stem length, seed color and cotyledon shape. Tall and short stature.

The homozygous allele for tall stature is represented by TT and the homozygous allele for dwarfism is represented by tt. After

fertilization, the resulting hybrids may have the following genotypes. TT, TT, TT. The

hybrid has a phenotypic ratio of 3:1, but a genotypic ratio of 1:2:1.

Here, size is the dominant feature because size dominates short stature, although short stature is expressed only when present under homozygous conditions.

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