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If by "all dominant phenotypes" you mean the parents are homozygous, then no.

AA x AA will never yield a gamete with AA

But if you're talking about heterozygous chromosomes

Aa x Aa, then yes

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13y ago

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Related Questions

How is Dominant and Recessive differ?

Dominant traits are expressed when just one copy of the gene is present, while recessive traits require two copies to be expressed. Dominant traits mask recessive traits when they are both present.


What gene is always expressed?

Dominant genes will always be expressed however recessive genes would need to be inherited from both parents


What is recessive and dominant mean?

I am pretty sure the recessive and dominant alleles you are talking about are covered in Biology. Recessive alleles are basically alleles that are received from both parent's DNA that are carries, (dd). However, dominant alleles are (exactly what it says) always expressed. If there is one dominant allele and one recessive allele the dominant allele overpowers the recessive. (DD) and (Dd)overpowers (dd).


Comapre and contrast dominant and recessive traits?

Dominant traits are characterized by a single copy of a gene being sufficient to express a certain trait, whereas recessive traits require two copies of the gene (one from each parent) for the trait to be observed. Dominant traits typically mask the expression of recessive traits when both are present.


Which form of gene pair is expressed when both dominant and recessive are present?

In a situation where both a dominant and recessive allele are present in a gene pair, the dominant allele will be expressed phenotypically. The presence of a dominant allele overrides the expression of the recessive allele.


How are dominant and recessive alike?

Both dominant and recessive traits are terms used to describe the inheritance pattern of a specific gene. They are both part of Mendelian genetics, where dominant traits mask the expression of recessive traits when present together. Both dominant and recessive alleles can be carried by an individual, with dominant alleles being expressed over recessive ones.


When neither allele is dominant what are they expressed as?

Both of the alleles must be recessive. The trait expressed is a recessive trait.


What is meant by dominance and recessiveness?

First of all alleles code for different traits all across an organism. Simply looking at it, a dominant allele is a trait that essentially "dominates" or is expressed over a recessive allele. In theory every organism (that is not asexual) receives one allele from its father and one allele from its mother. If both of these alleles are dominant (homozygous dominant) than the dominant trait is expressed, if one is dominant and one is recessive (heterozygous) than still the dominant trait is expressed. However, if the alleles for both traits are recessive (homozygous recessive) than the recessive trait will be expressed.


How do dominate traits over power the recessive?

Dominant traits are expressed over recessive traits because the dominant allele codes for a functional protein that masks the effects of the recessive allele. In a heterozygous individual carrying one dominant and one recessive allele, the dominant allele is expressed, leading to the dominant trait being observed.


How is codominance different from a dominant and recessive relationship?

In codominance, both alleles in a gene pair are expressed equally, resulting in a blending of traits. This is different from a dominant and recessive relationship, where one allele is dominant and masks the expression of the recessive allele.


What is a trait that is expressed even if only one gene for that form of the trait is inherited?

It is a dominant trait. You only need one gene of a dominant trait for that trait to be expressed. You need two copies of the recessive trait in order for the trait to be expressed.


Why does an organism have one factor for a dominant trait and one factor for a recessive trait?

Organisms have two factors (alleles) for a trait because they inherit one from each parent. Dominant traits are expressed when at least one dominant allele is present, while recessive traits are only expressed when both alleles are recessive. This is known as Mendelian inheritance.