Use the following information to answer the next two questions. In humans, the c

Question

Use the following information to answer the next two questions.

In humans, the condition for normal blood clotting (H) is dominant to hemophilia (h). Suppose William, who has hemophilia, and Linda, who is a carrier for hemophilia, have a son, Mark. What is the probability that Mark will have this condition?

100%

75%

50%

0%

Question 2

Select one answer.

10 points

If William and Linda have a daughter, what is the probability that she will have this condition?

100%

0%

75%

50%

Question 3

Select one answer.

10 points

What is the genotype of the unshaded individuals in the pedigree below?

AA

aa

Either AA or Aa

Aa

Question 4

Select one answer.

10 points

Genes on the X chromosome are called ______________.

epistatic

sex-linked

autosomal

somatic

Question 5

Select one answer.

10 points

Nondisjunction in meiosis I results in

one cell missing a chromosome, one cell with missing a chromosome and two healthy cells.

two cells missing a chromosome and two cells with an additional chromosome

two cells with an additional chromosome and two healthy cells

two cells missing a chromosome and two healthy cells.

Question 6

Select one answer.

10 points

Traits that are sex-linked and recessive are ________________________.

more common in males

more common in females

equally common in both males and females

Question 7

Select one answer.

10 points

Nondisjunction in meiosis II results in: ______________________

One cell missing a chromosome, one cell with missing a chromosome and two healthy cells.

Two cells missing a chromosome and two cells with an additional chromosome.

Two cells missing a chromosome and two healthy cells.

Two cells with an additional chromosome and two healthy cells.

Question 8

Select one answer.

10 points

According to the pedigree below, this trait is ____________________.

Sex-linked dominant

Sex-linked recessive

autosomal recessive

autosomal dominant

Question 9

Select one answer.

10 points

The sex of the offspring is determined by _____________.

the mother only

the father only

both the mother and the father

Explanation / Answer

75%

Q2

50%

Q3

Either AA or Aa

Q4

sex-linked

Q5

two cells missing a chromosome and two cells with an additional chromosome

Q6

more common in males

Q7

One cell missing a chromosome, one cell with missing a chromosome and two healthy cells.

Q8

autosomal recessive

Q9

the father only

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