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Dominant is an allele that will always be expressed in a heterozygous individual.

Recessive on other hand are traits that will only be expressed in a homozygous condition.

Organisms receive one allele for each trait from each parent, thus you have two alleles for each trait.

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What is the difference between dominant and recessive alleles on the basis of DNA?

Dominant alleles override recessive alleles. For instance, if there is both a dominant allele and a recessive allele present the dominant allele will be the trait that you end up with. If you have two recessive alleles, then you will have the recessive trait. :::::::::::::::brown eyes overrided blue eyes, because they are darker:::::::::::::::::: usually a darker color overpowered/override the lighter ones....i dont really know why but my science teacher said so......


What can be dominant or recessive?

Alleles can be dominant or recessive


Why are some genes alleles dominant and recessive?

Genes have dominant and recessive alleles because of the way they interact with each other. Dominant alleles are expressed over recessive alleles because they carry instructions that override the instructions of the recessive allele. This dominance is determined by the specific genetic makeup and interactions within an organism.


Gene pairs consists of two dominant alleles or two recessive alleles?

A gene pair that consists of a dominant allele and a recessive allele is called a heterozygous gene. A homozygous gene, meanwhile, is a gene pair consisting of two dominant alleles or two recessive alleles.


What is the difference between dominant alleles and recessive alleles?

dominant-appears in first generation recessive-seems to dissapear


How are Dominant and recessive alleles are represented in Punnet Square?

Dominant alleles are shown by a capital letter and recessive alleles are lowercase letters.


How are dominant and recessive alleles are represented in a punnet square?

Dominant alleles are shown by a capital letter and recessive alleles are lowercase letters.


What is gene pair consists of two dominant alleles or two recessive alleles?

A gene pair that consists of 2 dominant or 2 recessive alleles is considered homozygous dominant or homozygous recessive.


What type of alleles mask recessive alleles?

Dominant alleles :-)


What are the two terms for having matching alleles for a certain trait?

The two terms for having matching alleles for a certain trait are "homozygous dominant" (two dominant alleles) and "homozygous recessive" (two recessive alleles).


How dominant and recessive alleles are represented in a Punnett Square?

Dominant alleles are written in upper case (i.e, 'A'), while recessive alleles are lower case (i.e, 'a')


How is recessive alleles different from dominant alleles?

You need two recessive alleles to get their trait, but only one dominant allele to get that trait. A dominant allele basically overrides a recessive one if they are together, but the recessive gene can show up in offspring.