ACP Biology Final Exam – Comprehensive Review of Exam 1, Exam 2, and Exam 3 with Practice Questions and Answers

Final Exam (Exam 1, Exam 2, and Exam 3 included) (ACP Biology)
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1. All the offspring of a cross between a black-eyed B
Mendelian and an orange-eyed Mendelian have black
eyes. What is the expected phenotypic ratio of a cross
between two orange-eyed Mendelians?
A) 3 black-eyed: 1 orange-eyed
B) 0 black-eyed: 1 orange-eyed
C) 1 black-eyed: 3 orange-eyed
D) 1 black-eyed: 0 orange-eyed

2. If A is dominant to a and B is dominant to b, what D
is the expected phenotypic ratio of the cross AaBb x
AaBb?
A) 16:0:0:0
B) 8:4:2:2
C) 1:1:1:1
D) 9:3:3:1

3. Using a six-sided die, what is the probability of rolling B
either a 5 or a 6?
A) 1/6 x 1/6 = 1/36
B) 1/6 + 1/6 = 1/3
C) 1/6 + 1/6 = 2/3

4. Dr. Smith's parents have normal hearing. However, Dr. C
Smith has an inherited form of deafness. Deafness is
a recessive trait that is associated with the abnormal
allele d. The normal allele at this locus, associated
with normal hearing, is D. Dr. Smith's parents could
have which of the following genotypes?
A) DD and dd
B) dd and dd
C) Dd and Dd
D) Dd and DD

5. Imagine that beak color in a finch species is con- A
trolled by a single gene. You mate a finch homozy-
gous for orange (pigmented) beak with a finch ho-
mozygous for ivory (unpigmented) beak and get nu-
merous offspring, all of which have a pale, ivory-or-


, Final Exam (Exam 1, Exam 2, and Exam 3 included) (ACP Biology)
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ange beak This pattern of color expression is most
likely to be an example of
A) incomplete dominance
B) codominance
C) pleiotropy
D) polygenic inheritance

6. A colorblind woman marries a man who is not color- C
blind. All of their sons, but none of their daughters,
are colorblind. Which of the following statements cor-
rectly explains these results?
A) The gene for color vision is incompletely dominant
to the gene for sex determination
B) The gene for color vision is codominant with the
gene for sex determination
C) The gene for color vision is found on the X chro-
mosome
D) The gene for color vision is found on the Y chromo-
some

7. If independent assortment did not occur, which of the A
following would be true?
A) Genes for two different traits would be inherited
together as a pair
B) Meiosis II would not be required to produce ga-
metes, as meiosis I would be sufficient
C) A dihybrid cross of heterozygous individuals
would yield four different phenotypes
D) Each sperm and egg would carry more than one
allele for a specific gene

8. In giraffes, long necks (N), long legs (L), dark spots A
(D), and the ability to digest maize (M) are all
dominant traits. What possible genotype could a
long-necked, short-legged, light-spotted, maize-di-
gesting giraffe have?
A) NnllddMM
B) NNLLDdMm




, Final Exam (Exam 1, Exam 2, and Exam 3 included) (ACP Biology)
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C) NNllddmm
D) nnLLddMM

9. Below are two statements: Which (if any) applies to B
the law of segregation? Which (if any) applies to the
law of independent assortment?
I: Phenotypes for long tails and big eyes are inherited
separately in lab mice.
II: A baby mouse inherits a maternal red-eye allele and
a paternal black-eye allele.
A) I: Segregation; II: Independent Assortment
B) I: Independent Assortment; II: Segregation
C) I: Segregation; II: Segregation
D) I: Independent Assortment; II: Independent Assort-
ment

10. In some cats, black coat color (B) is dominant over D
brown (b) and a striped fur pattern (S) is dominant
over a marbled fur pattern (s). You rescued a black
striped cat from an animal shelter but could not de-
termine its exact genotype. To do so, you mated the
cat with a brown marbled cat. The mating produced
3 brown marbled, 2 brown striped, 2 black marbled,
and 3 black striped. Immediately, you concluded the
genotype of your rescued cat was
A) BBSS
B) BBSs
C) BbSS
D) BbSs

11. You are trying to determine the linkage map of a D
series of genes, X, Y, and Z, from caenorhabditis ele-
gans, a nematode worm commonly used in scientific
research. From doing several crossover experiments,
you know that the recombination frequency between
X and Y is 11.5%, between Y and Z is 13%, and be-
tween X and Z is 25%. What is the possible sequence
of these genes?
A) X-Z-Y



, Final Exam (Exam 1, Exam 2, and Exam 3 included) (ACP Biology)
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B) Y-Z-X
C) Z-X-Y
D) X-Y-Z

12. Justin has type A blood and his wife Brittany has type D
B blood. Justin's parents both have type AB blood,
and Brittany's parents also both have type AB blood.
What are the chances that Justin and Brittany's son
Theodore has type A blood?
A) 100%
B) 75%
C) 25%
D) 0%

13. What is the most likely explanation for the occurrence D
of an X-linked genetic disorder in the boy at the bot-
tom of the pedigree shown? (#25 on Chapter 9 Test)
A) The boy inherited this allele from this father only
B) The boy inherited this allele from his mother only
C) The boy inherited the kind of allele that skips every
other generation
D) The boy has a new mutation for the disorder

14. How would the shape of a DNA molecule change if D
adenine paired with guanine and cytosine paired with
thymine?
A) The DNA molecule would be longer.
B) The DNA molecule would be shorter.
C) The DNA molecule would be circular.
D) The DNA molecule would have irregular widths
along its length

15. The shape of a DNA molecule is most like C
A) a set of railroad tracks
B) a wooden ladder
C) a twisted rope ladder
D) beads on a string

16. If one strand if DNA is CGGTAC, then the complemen- D
tary strand would be