Sex linkage inheritance

What is a key feature of autosomal dominant inheritance regarding affected individuals' parents?

All affected individuals have at least one affected parent.

In an autosomal dominant pattern, can both males and females be affected?

Yes, both males and females can be affected.

In an autosomal recessive inheritance, who are the parents of an affected child?

Two unaffected parents can have an affected child.

Can the trait in an autosomal recessive pattern disappear and reappear in later generations?

Yes, the trait may disappear but can reappear in later generations.

How does the pattern of inheritance differ between affected males and females in an X-linked dominant pattern?

Males with the trait pass it on to all daughters and none of the sons.

What happens to the trait if it disappears from a branch of the pedigree in both autosomal dominant and X-linked dominant patterns?

It does not reappear.

In X-linked recessive inheritance, what is true for the daughters of a male with the trait?

All daughters of a male with the trait are carriers but do not show the trait.

In large samples of X-linked recessive patterns, which gender is more likely to show the trait?

More males than females show the trait.

How many children of two individuals with an X-linked recessive trait will show the trait?

All children of two individuals with the trait also show the trait.

In autosomal recessive patterns, how do the affected numbers of males and females compare?

There are approximately equal numbers of affected females and males.

What is a common feature of inheritance regarding affected individuals in the X-linked dominant pattern?

Every affected person has at least one parent with the trait.