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What type of inheritance is much more common due to female carriers?
X-linked recessive inheritance.
Can females with X-linked recessive diseases have a normal phenotype?
Yes, females can be carriers and still have a normal phenotype.
Name one disease transmitted by X-linked recessive inheritance.
Color blindness.
What is another disease associated with X-linked recessive inheritance?
Hemophilia.
What is a third disease that can be transmitted by X-linked recessive inheritance?
Some forms of muscular dystrophy.
In the example given, what is the genotype of the male parent?
Normal.
What is the chance of female offspring becoming carriers in the example?
50 percent.
How many male offspring would be affected in the example?
50 percent.
Can males be carriers of X-linked recessive diseases?
No, males cannot be carriers.
What are the possible genotypes for females regarding X-linked recessive diseases?
Genotypically normal, a carrier who is phenotypically normal, or affected.
When can a female inherit the gene for an X-linked recessive illness?
When the female parent is a carrier or affected, or the male parent is affected.
Under what condition will female offspring be affected by the disease?
If they inherit an X-linked recessive gene from both parents.
Do X-linked recessive disorders affect more males or females?
They affect many more males than females.
What is the prevalence of color blindness in males?
At least 1 in 20 males.
What is the prevalence of color blindness in females?
About 1 in 400 females.
What is the phenotype of female carriers in X-linked recessive inheritance?
Phenotypically normal.
What happens to female offspring if they receive a normal gene from their male parent?
None of the female offspring would have the disease.
What is the role of the female parent in the inheritance of X-linked recessive diseases?
She can be a carrier or affected.
What is the outcome for male offspring in the example if they inherit the disease gene?
They would be affected.
What type of inheritance is described in the text?
X-linked recessive inheritance.
What is a characteristic of males with X-linked recessive diseases?
They either have the disease or are genotypically normal.
Can a female be affected if she inherits a normal gene from both parents?
No, she cannot be affected.
What percentage of female offspring have a chance of being carriers?
50 percent.
What is the chance of male offspring being affected?
50 percent.
What happens if a female inherits an X-linked recessive gene from both parents?
She will be affected by the disease.
What is the significance of being a carrier for females?
They can pass the disease gene to their offspring.
What is the relationship between carrier status and phenotype in females?
A carrier can be phenotypically normal.
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