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Both X chromosomes must carry the recessive trait. Since males only have one X chromosome, it is much easier for males to have the recessive phenotype. Put another way, a female would have to receive an X chromosome with the recessive gene from both parents, which would mean the father already displays the recessive disorder.
What else can I help you with?
What is a sex-linked linked genetic disorder?
color blindness is one
In the family tree below people with the recessive trait of attached earlobes are shaded gray.?
a male with one recessive allele
Why do Males tend to be affected in greater numbers by X-linked recessive genetic disorders than females?
males have only one X chromosomes
Is blonde hair recessive or dominant?
Recessive gene of X chromosome. more common in men as they have only one x chromosome but in female there are 2 X chromosome. If one of X chromosome in female has this recessive gene, they become a carrier. If both the X chromosome in female has this gene, they show baldness
Is hemophilia co dominant or dominant?
It is very much recessive with only one exception, which is that there is a large portion of women who simply carry the trait but dont actually have it. If you are to procreate with a female carrier than your chances of having a hemophiliac child are still not very high. You can find all the info you need by using a Punnett Square method to figure out the chances of hemophiliac children with 2 parents.
Who is a person that is a carrier for a sex-linked recessive disorder?
Usually female.
Does hemophilia skip a generation?
Haemophilia is a sex-linked recessive disorder - which means it can skip a generation, but only if it is carried in the female line.A female can be a carrier of haemophilia, but a male cannot. This is because males only have one X chromosome, so if they have a defective X they will have the disorder. If a father has haemophilia, all of his daughters will also have haemophilia.
A female who is a carrier of Fabry's disease has what chance of having a daughter who is a carrier?
The mother has a 50% chance of passing the defective recessive gene to her daughters who will be carries of the disorder (like their mother).
How does hemophilia progress?
Hemophilia is a recessive allele condition. Men can get hemophilia alot easier than women as the allele is found on the XY Chomosome pair. With men. they do not have the extra "tail" on the Y chromosome compared to the XX with a female. If the person has the recessive allele on the X chromosome and this person is male, they will be a hemophiliac as they do not have a 'pair' allele which could be dominant to stop the condition expressing itself. On a female, if there is a recessive (hemophilia) allele on one of the X chromosomes but on the other is a Dominant (normal) allele then she will be a carrier of the faulty gene but will not suffer from the condition herself. If the female have a recessive (faulty) gene on each of the XX chromosomes, then she will be a sufferer of the disease.
Can a person be a carrier for a dominant genetic disorder?
Anyone can be a carrier of a recessive genetic disorder (as long as it is not associated with the sex chromosomes) no matter what their gender since "carrier" refers to an individual that is heterozygous for the recessive allele and therefore phenotypically normal. Specifically, sexlinked genetic disorders can be "carried" by a heterozygous female but males (having only one X chromosome) cannot. Males will either be free of the defective gene or be affected.
What is a sex-linked linked genetic disorder?
color blindness is one
What genes are present in the eggs if the female is ressesive for both traits?
If the female is recessive for both traits, she would carry two copies of the recessive gene for each trait. Therefore, the eggs from this female would all carry two copies of the recessive gene for each trait.
What are the disorders of female reproductive system?
wheat disorder female
Why do a man with AB blood and a female with A blood have a offspring with B blood?
The female would have to have the blood genotype of AO. The recessive O is masked by the female with the domaint A allele. Their offsprings genotype would be BO the B would be from the father and the recessive O from the mother.
Why is it unlikely that natural selection will quickly reduce the frequency of hemophilia?
While the condition affects the males, it is CARRIED by the females, who do not suffer the effects of hemophilia, and can pass the disorder to THEIR female offspring.
In the family tree below people with the recessive trait of attached earlobes are shaded gray.?
a male with one recessive allele
Which population is mostly affected by Binge Eating Disorder?
The population of the United States of America are mostly affected by Binge Eating Disorder.
