5 Steps to a 5 AP Biology, 2014-2015 Edition

292 ❯ STEP 5. Build Your Test-Taking Confidence

Questions 36–39 refer to the preceding pedigree.

36.What kind of inheritable condition does this pedi-
greeappear to show?
A. Autosomal dominant
B. Autosomal recessive
C. Sex-linked dominant
D. Sex-linked recessive

37.What is the probability that couple C and D will
produce a child that has the condition?
A. 0
B. 0.125
C. 0.250
D. 0.333

38.Which of the following conditions could show
the same kind of pedigree results?
A. Cri-du-chat syndrome
B. Turner syndrome
C. Albinism
D. Hemophilia

39.If child E does in fact have the condition, what
is the probability that child F will also have it?
A. 0
B. .250
C. .500
D. .750

Questions 40–42: An experiment involving fruit flies
produced the following results:

Vestigial wings are wild type, crumpled wings are mutant.

Gray body is dominant, black body is mutant.

525 vestigial, gray-bodied flies V =vestigial

555 crumpled, black-bodied flies v =crumpled

75 crumpled, gray flies G =gray

45 vestigial, black-bodied flies g =black

40.From the data presented above, one can con-

clude that these genes are

A. sex-linked.

B. epistatic.

C. holandric.

D. linked.

41.What is the crossover frequency of these genes?

A. 10 percent

B. 20 percent

C. 30 percent

D. 35 percent

42.How many map units apart would these genes be

on a linkage map?

A. 5 map units

B. 10 map units

C. 20 map units

D. 30 map units

Questions 43–45: A laboratory procedure involving

plants presents you with the data found in the follow-

ing 2 charts:

AB

1st generation

2nd generation

C D

3rd generation

E F