Use the following information to answer the next two questions. In humans, the c
ID: 49361 • Letter: U
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