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What is a dominent allele?
A dominant allele is an allele that can take over a recessive allele, so if you have a dominant allele and a recessive allele, then the offspring will most likely have a dominant allele over a recessive allele. The dominant allele is expressed over the recessive allele.
Why are recessive alleles not always expressed as the phenotype?
recessive alleles get masked to show the difference in a dominant gene and a recessive gene. the dominate genes masks the recessive genes to show that the dominate gene is more dominate or more likely to be the outcome than the reccessive gene but the masked gene is not always recessive.
Are dominante and recessive genes responsibile for how baby looks?
Yes, dominant and recessive genes play a role in determining physical traits in offspring. Dominant genes are more likely to be expressed in the phenotype, while recessive genes are typically masked unless an individual inherits two copies of the recessive allele. This interplay between dominant and recessive genes contributes to the variety of physical characteristics seen in offspring.
Is this true or false in females a recessive allele on the X chromosome is often has no matching allele on the y chromosomes?
True. In females, who have two X chromosomes, a recessive allele on one X can be masked by a dominant allele on the other X. However, since males have one X and one Y chromosome, any recessive allele on their single X chromosome has no matching allele on the Y chromosome, making them more likely to express traits associated with those recessive alleles.
What does this tell you about the allele for white hair in horses?
The allele for white hair in horses is present in this individual, as evidenced by the white hair present. This individual likely carries two copies of the allele, as white coat color is typically a recessive trait in horses.
What is a dominent allele?
A dominant allele is an allele that can take over a recessive allele, so if you have a dominant allele and a recessive allele, then the offspring will most likely have a dominant allele over a recessive allele. The dominant allele is expressed over the recessive allele.
Why are recessive alleles not always expressed as the phenotype?
recessive alleles get masked to show the difference in a dominant gene and a recessive gene. the dominate genes masks the recessive genes to show that the dominate gene is more dominate or more likely to be the outcome than the reccessive gene but the masked gene is not always recessive.
Would a recessive allele or dominant allele be more common in population?
Dominant allele because its more likely to be received by the next generation.
Are dominante and recessive genes responsibile for how baby looks?
Yes, dominant and recessive genes play a role in determining physical traits in offspring. Dominant genes are more likely to be expressed in the phenotype, while recessive genes are typically masked unless an individual inherits two copies of the recessive allele. This interplay between dominant and recessive genes contributes to the variety of physical characteristics seen in offspring.
What does the word dominant mean in genetics?
In genetics, "dominant" refers to an allele that will be expressed in the phenotype if present, masking the expression of the corresponding recessive allele. This means that even if an individual has one dominant allele and one recessive allele for a particular trait, the dominant allele's phenotype will be visible.
Is this true or false in females a recessive allele on the X chromosome is often has no matching allele on the y chromosomes?
True. In females, who have two X chromosomes, a recessive allele on one X can be masked by a dominant allele on the other X. However, since males have one X and one Y chromosome, any recessive allele on their single X chromosome has no matching allele on the Y chromosome, making them more likely to express traits associated with those recessive alleles.
What makes dominant alleles different from recessive alleles?
It's in the word! Dominant means bigger or stronger or greater. So the dominant allele is the stronger gene that is going to show whereas the recessive allele is still in you, but is overshadowed by the dominant allele.
If there is Down syndrome on your husband's side are you likely to have a special needs baby?
You're husband may not necessarily have the down syndrome allele. Also the only way you would have a special needs baby is if you also have the recessive (down syndrome) allele. Here are the chances: If neither of you have the recessive (down syndrome) allele - 0% If one of you have the recessive allele - 0% If you both have the recessive allele - 25% The chances are pretty low but it is not definite that you wont have a special needs baby.
Defective alleles are eliminated rapidly from population if they are?
A defective allele is more likely to be eliminated from a population if it is dominant. This is because it is immediately exposed to the effects of selection, as only one copy of a dominant allele is needed for it's characteristic to be developed. If an allele is recessive it can survive in a population as it is 'hidden' from selection by the presence of the corresponding dominant allele. It will only beexposed to selectionif an individual inherits the recessive allele from both parents. If the recessive allele is rare, the chances of two individuals with the allele mating could be quite small. In this way a defective recesssive allele could survive at low levels in a population.
What does this tell you about the allele for white hair in horses?
The allele for white hair in horses is present in this individual, as evidenced by the white hair present. This individual likely carries two copies of the allele, as white coat color is typically a recessive trait in horses.
How is a recessive alle different from a dominant allele?
its different because adominant allele is in charge
Would you expect there to be more children with the dominant phenotype or recessive phenotypewhy?
There would likely be more children with the dominant phenotype because it only requires one copy of the dominant allele to express the dominant trait, whereas the recessive phenotype requires two copies of the recessive allele.
