answersLogoWhite

0


Best Answer

It overpowers and masks the other allele

User Avatar

Wiki User

14y ago
This answer is:
User Avatar
More answers
User Avatar

AnswerBot

6mo ago

A dominant allele expresses its trait in an individual when present, masking the effect of a recessive allele. This means that if an individual has at least one copy of a dominant allele, the associated trait will be displayed.

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What does a dominant allele always do?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

Allele that is always expressed if present?

An allele that is always expressed when it is present is the dominant allele.


What is an allele that always shows up in an organism's phenotype called - an allele that masks the other allele?

An allele that always shows up in an organism's phenotype and masks the expression of another allele is called dominant. Dominant alleles are always expressed, even when paired with a recessive allele.


If and individual has one dominant allele and one recessive allele will the recessive allele show up?

No, the dominant allele will be expressed in the individual's phenotype, masking the presence of the recessive allele. The recessive allele will only be expressed if an individual inherits two copies of the recessive allele.


What is the allele that will always show physically?

The dominant allele will always show physically in an individual, while the recessive allele will only be expressed if paired with another recessive allele.


Why is a dominant allele called dominant apex?

because it dominates the phenotype


What is an Dominant allele?

A dominant allele is a gene that holds a certain characteristic that is superior to a recessive allele. The dominant allele ALWAYS has its trait shown in the body of the recipient, except when both alleles in a gene are recessive.


What is a dominent allele?

A dominant allele is a version of a gene that, when present, will always be expressed in the organism's phenotype, overriding the presence of a recessive allele. This means that if an individual inherits one copy of a dominant allele and one copy of a recessive allele for a particular gene, the dominant allele will determine the observable trait.


What is an allele whose trait always shows up in the organism?

type 2 Diabetes


Allele that prevents the expression of a recessive allele?

A dominant allele


What gene is masked if it is paired with a dominant gene?

The different forms of a gene are called alleles. In Mendelian genetics, a gene has a dominant allele and a recessive allele. The dominant allele masks the recessive allele if present. So there are two possible dominant genotypes: homozygous dominant, in which both dominant alleles are present; and heterozygous, in which one allele is dominant and the other allele is recessive. The only way to express a recessive trait is to have the homozygous recessive genotype.


What is the difference between dominant alleles and recessive alleles?

dominant-appears in first generation recessive-seems to dissapear


What is allele masked by the dominant allele?

An allele that is masked by the dominant allele is called a recessive allele. When an individual has one dominant allele and one recessive allele, only the trait determined by the dominant allele will be expressed. The recessive allele will only be expressed if an individual has two copies of it (homozygous recessive).