10.3

Question 1

What is the difference between autosomal and sex-linked traits

Answer 1

Autosomal traits are traits inherited from the autosomal chromosomes, sex-linked traits are traits that are inherited from the sex chromosomes, usually the X.

Question 2

What is the difference between recessive and dominant traits

Answer 2

Traits that are dominant show themselves every time they are in an allele, while recessive only show themselves when there are two of them in one allele

Question 3

What is a Y-linked trait

Answer 3

Traits that are linked to the Y chromosome, these traits will only and always be passed down from Father to son

Question 4

X^h X^H : X^h Y

In this cross, what are the chances of a girl having hemophilia and the chances of a boy having hemophilia

Answer 4

For a girl the chances of having hemophilia is 1/2, while the chances of her being a carrier is also 1/2. For a boy its the same.

Question 5

What are some good indications of a Y linked trait being passed on

What is a good indication of a recessive trait being passed on

Whats a good indication of a Dominant trait being passed on

Answer 5

If only the only people affected by it are males

If usually only a minority of the offspring are getting it, or if it is skipping generations

If a majority of the offspring are getting it, and it will not skip generations.