Human Genetics extra credit questions

In regard to hemophilia, colorblindness, and muscular dystrophy, would you expect more affected males or females? Explain why.
More males should be affected because these are sex-linked traits, and males have only 1 X chromosome.
Could a dad with curly hair and a mom with straight hair have a child like either parent? Explain why or why not.
No. All children are Cc genotype and have wavy hair.
Could a roller and a nonroller have children who are nonrollers? Rollers? Explain your answers.
Nonrollers yes - the roller parent must be heterozygous.
Rollers yes - it is a dominant trait.
How many children were produced at your table that were tone deaf?
SKIP...
What are the chances of two normal tone hearing parents producing a tone deaf child?
0% - normal tone hearing is recessive. What are the chances of one normal tone hearing parent and a tone deaf parent to produce a tone deaf child?
If tone deaf parent is heterozyous - 50%.
If tone deaf parent is homozygous dominant - 100%.