What is the difference between recessive disorders and dominant disorders?

Answer 1

With autosomal recessive diseases there is another allele to compensate for the disease allele. say for example, a female has a mutation in one of here genes that means the gene no longer functions. if she were to pass this allele on to her offspring, as long as the father of her children had a healthy copy of that gene, no children will have the disease (though there is a 50% chance of them being carriers)

with sex linked diseases (i.e. x-linked diseases) however, males will always be suffers. the Y chromosome carries very little information. most of the genes it has are just involved with making the individual a male, and the male relies on the single X chromosome inherited from their mother. if this has a disease allele on it (even is if it is recessive) the male will have the disease, as there is no paternal allele to compensate for the disease state.

Answer 2

A sex linked dominant trait could be on the X chromosome of either parent and the phenotype of any individual carrier would be that of the dominant trait. A

father with the dominant characteristic on his single X chromosome would produce daughters that are 100% carriers and would not pass the characteristic on to his sons.

A mother who is a dominant X linked carrier would pass the dominant characteristic on to half hersons and half her daughters all of which would

show the trait phenotypically.

A sex linked recessive father would produce 100% carrier daughters. His sons

would not get the recessive allele from him.

A sex linked recessive carrier (heterozygous) mother would pass the trait on

to 50% of her children and 50% of her sons would show the recessive trait

genetics.

Answer 3

X-linked traits are carried on the X chromosome, two of which are present in females, but only one is present in males. In males, only one instruction (allele) exists for an x-linked trait, thus whichever one is present will be expressed. In females, an x-linked dominant trait will be expressed if present; an x-linked recessive requires both alleles to be the recessive form to be expressed if present (as in hemophilia and other such diseases).

Answer 4

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