Under what condition would a recessive allele be expressed in an individual?

Under what condition would a recessive allele be expressed in an individual?

Recessive alleles only show their effect if the individual has two copies of the allele (also known as being homozygous?). For example, the allele for blue eyes is recessive, therefore to have blue eyes you need to have two copies of the ‘blue eye’ allele.

Under what conditions is a single recessive allele expressed in a male?

Under what condition is a single recessive allele expressed in a male? If it is located on the X chromosome. There is no other allele to mask it so it is expressed. Why are females less likely to show a trait caused by a recessive allele linked to an X chromosome?

Under which condition is a recessive gene likely to be expressed quizlet?

The recessive trait may be expressed when the recessive genes are in homozygous condition or when the dominant gene is not present. An allele is one of the possible forms of a gene. Most genes have two alleles, a dominant allele and a recessive allele.

What causes the expression of a recessive trait?

A recessive trait is a trait that is expressed when an organism has two recessive alleles, or forms of a gene. Dominant alleles mask the effects of recessive alleles, so a recessive trait is only expressed when an organism has two recessive alleles for a gene.

What is the difference between recessive and dominant trait?

What is the difference between dominant and recessive traits? Dominant traits are always expressed when the connected allele is dominant, even if only one copy of the dominant trait exists. Recessive traits are expressed only if both the connected alleles are recessive.

What does a straight thumb mean?

Your thumb is straight If it is straight and not flexible, you are a stubborn person who likes to dominate. Some people might think that you look like a stone with your poker face, but admire that you keep your promises. They can always rely on you.

What is a clubbed thumb?

Brachydactyly type D, also known as short thumb or stub thumb and inaccurately referred to as clubbed thumb, is a condition clinically recognised by a thumb being relatively short and round with an accompanying wider nail bed.

Why is hitchhiking illegal in the US?

It’s illegal to stand on the side of a major highway and solicit rides, because this is a danger to other drivers on the road. However, standing at the on-ramp entrance before a highway is legal in most states.

What is the anatomical term for thumb?

pollex