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are phenotypically expressed. They are expressed in homozygous form and in heterozygotes with the recessive allele. Recessive alleles are only phenotypically expressed in homozygous form. Consider two alleles for flower color, A and a, where A is dominant and expressed as red, and a is recessive and expressed as white. There are only three diploid genotypes possible for these alleles: AA Aa and aa.However, because A is dominant, the following phenotypes will be expressed for the following genotypes:

AA: red

Aa: red

aa: white

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Q: Dominant alleles are so called because under most circumstances they?
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Related questions

Why is a dominant alleles called a dominant?

because it dominates the phenotype


Why is dominant alleles called dominant?

because it dominates the phenotype


Why is a dominant alleles called dominant?

because it dominates the phenotype


What is two dominant alleles called?

In eyes, it would be brown is dominant, and blue is recessive. Free earlobe allele is said to be dominant over the attached earlobe allele. When an organism has two dominant alleles for a trait, it is called homozygous dominant. Two recessive alleles for a trait is homozygous recessive.


What is a cross with four dominant traits called?

It is called alleles.


When two different alleles occur together the one that is expressed is called?

Dominant.


What is a gene pair called when is consist of two dominant alleles or two recessive alleles?

Homozygous


What type of allele masks the expression of the recessive allele?

Two recessive alleles can not take over a dominant allele because there are only two alleles in a pair. This can only happen if there is a mutation because the dominant always takes over the recessive.


What is an interaction between alleles in which both alleles are expressed more or less equally or a blending occurs called?

Those would be called co-dominant alleles.


What was the dominant alleles in Mendel's pea plants?

Gregor Mendel called them factors, or traits.


Why do we call some alleles dominant?

because it dominates the phenotype


What is a trait called that only appears when both alleles are present?

.If this is for an answer in Horse Isle 2, the answer is dominant