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How do you recognize a pedigree for an x-linked recessive allele in human beings?
Wiki User
∙ 10y ago
For a recessive sex-linked trait to manifest in women it would have to be in double dose (XaXa) while for men in single dose (XaY). Women carriers would have one of each but would not be affected (XAXa). Knowing this it's quite easy to spot pedigrees where this kind of inheritance occures.
- Heterozygote mothers (gene carrier) can have sons that are affected (50% chance);
- Affected mothers have only affected sons (100%);
- No first generation daughter of an heterozygote mother will be affected but there is a 50% chance that she is a carrier;
- Affected fathers with normal mothers will have zero sons that are affected but all their daughters will be carriers;
Wiki User
∙ 10y ago
Wiki User
∙ 10y agoa disease seen more often in males than females
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What is allele masked by the dominant allele?
The Allele That Is Covered By The Dominant Allele Is The Recessive Allele.
This pedigree is for a human genetic disease called sickle cell anemia. Assuming that the allele for the disease is recessive how many of the females shown have the disease?
None. =]
What allele is covered up by the dominant allele?
An allele that's masked by a dominant gene is called a "Recessive"recessiverecessive traitThe recessive allele. Often depicted as the "small r" in examples: Rr, R=dominant, r= recessive.
An allele that is hidden by other alleles is called?
i think the answer your lokking for is recessive Recessive is when you have a trait in your genome but it doesn't show in your physical appearance
In one allele is dominant to a recessive allele?
In _____, one allele is dominant to a recessive allele.
What is the pedigree of a rare recessive phonotypr determined by a recessive allele?
this question makes no sense.
What is allele masked by the dominant allele?
The Allele That Is Covered By The Dominant Allele Is The Recessive Allele.
Is albinism controlled by a dominant allele or by a recessive allele?
Recessive allele.
Does a recessive allele need another recessive allele to be expressed?
I think if an allele "want" to be expressed, then it has to have a dominant allele. They don't need another recessive allele.
Is albinism controlled by a dominant allele o recessive allele?
It is controlled by a recessive allele.
What is the term for an allele that is not expressed in the phenotype of a heterozygous individual?
incomplete dominance source: PH Bio textbook
This pedigree is for a human genetic disease called sickle cell anemia. Assuming that the allele for the disease is recessive how many of the females shown have the disease?
None. =]
How is a recessive allele from a dominant allele?
its different because adominant allele is in charge
What is it Dominant allele What is a recessive allele?
A genotype in which there are both a dominant and a recessive allele is called heterozygous.
What is e difference between a dominate and recessive allele?
The answer is that The difference is that dominant dominates, and recessive is dominated.
What is a dominant allele what is a recessive allele?
An allele that hide the effect of other allele is called dominant.Allele that is masked is called recessive .
What allele is covered up by the dominant allele?
An allele that's masked by a dominant gene is called a "Recessive"recessiverecessive traitThe recessive allele. Often depicted as the "small r" in examples: Rr, R=dominant, r= recessive.
