0
How can a lethal allele continue to be present in a gene pool even when they are selected against?
Wiki User
∙ 12y ago
A harmful recessive allele remains in the population because both homozygous dominant and heterozygous genotypes produce the dominant, healthy phenotype. So the heterozygous genotype keeps the harmful recessive allele in the population.
Wiki User
∙ 12y ago
Wiki User
∙ 14y agoIf dominant, like Huntington's disease, then it may not be expressed until long after peak reproductive years have passed. If recessive it could be carried and masked from expression for untold generations. ( simplistic explanation )
Wiki User
∙ 12y agoMost lethal alleles are recessive , which persist in gene pool in heterozygous condition .
Add your answer:
Earn +20 pts
Does recessive allele is expressed if there is no dominant allele present?
YES
Capacity of one allele to suppress the expression?
A dominant allele will express itself if present, and will suppress the recessive allele's expression.
What is the term for an allele that is not expressed in the phenotype of a heterozygous individual?
incomplete dominance source: PH Bio textbook
If an allele for a particular trait is NOT expressed at all when another allele for the trait is present the allele is .?
The allele not expressed would be recessive whilst the other is dominant. This would be the case in a heterozygous genotype. Hope this helps
If an allele for a particular trait is not expressed at all when another allele for the trait is present the allele is?
The allele not expressed would be recessive whilst the other is dominant. This would be the case in a heterozygous genotype. Hope this helps
Which is the dominant allele?
The dominant allele is the trait that shows up in the organism when the allele is present
Does recessive allele is expressed if there is no dominant allele present?
YES
What is a fixed allele.?
An allele present in all members of a population
What type of allele is masked when a dominant allele is present?
recessive trate
What is an fixed allele APEX?
an allele present in all members of a population- APEX
Capacity of one allele to suppress the expression?
A dominant allele will express itself if present, and will suppress the recessive allele's expression.
Allele that is always expressed if present?
An allele that is always expressed when it is present is the dominant allele.
What is allele fixation?
An allele present in all members of a population
What is the term for an allele that is not expressed in the phenotype of a heterozygous individual?
incomplete dominance source: PH Bio textbook
Where are the effects o f a dominant allele seen?
it is present (shown) whenever it is present ( see Punnett Square) it will overthrow a recessive allele as long as it is there. it's effect is that you will get a certain trait for that allele. A Punnett Squar will help you the most.
If an allele for a particular trait is NOT expressed at all when another allele for the trait is present the allele is .?
The allele not expressed would be recessive whilst the other is dominant. This would be the case in a heterozygous genotype. Hope this helps
If an allele for a particular trait is not expressed at all when another allele for the trait is present the allele is?
The allele not expressed would be recessive whilst the other is dominant. This would be the case in a heterozygous genotype. Hope this helps
