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Chapter 14, Biology Exam 3- Mendelian Genetics, Chapter 14, Campbell Biology Chapter 14 Test Bank 2024/2025 with Complete Solutions (Updated and Verified)$12.49
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Chapter 14, Biology Exam 3- Mendelian Genetics, Chapter 14,
Campbell Biology Chapter 14 Test Bank 2024/2025 with
Complete Solutions (Updated and Verified)
In his breeding experiments, Mendel first crossed true-breeding _____ generation plants to
produce the _____ generation, which were then allowed to self-pollinate to generate the _____
offspring. (Concept 14.1)
a. F ... P1 ... P2
b. P1 ... P2 ... P3
c. P ... F1 ... F2
d. P1 ... P2 ... F
e. F1 ... F2 ... F3 - ✔️✔️c. P ... F1 ... F2
A plant with the genotype AABbcc _____. (Concept 14.1)
a. Will not express the recessive c allele.
b. is triploid
c. has recessive alleles at three loci
d. is homozygous at two loci
e. is heterozygous at two loci - ✔️✔️d. is homozygous at two loci
An allele is _____. (Concept 14.1)
a. a type of chromosome
b. a variety of pea plant used by Mendel
c. the recessive form of a gene
d. an alternative version of a gene
e. the dominant form of a gene - ✔️✔️d. an alternative version of a gene
GgTt pea plants can produce _____ type(s) of gametes, but a ggtt plant can produce _____
type(s) of gametes. (Concept 14.2)
a. four ... two
b. one ... one
c. one ... two
d. four ... one
e. two... one - ✔️✔️d. four ... one
Two organisms with genotype AaBbCcDdEE mate. These loci are all independent. What fraction
of the offspring will have the same genotype as the parents? (Concept 14.2)
a. 1/4
b. 3/4
c. 1/16
d. 9/64
e. 4/3 - ✔️✔️c. 1/16
You cross a true-breeding red-flowered snapdragon with a true-breeding white-flowered one. All
of the F1 are pink. What does this say about the alleles for the parental traits? (Concept 14.3)
a. Pink is dominant, while red and white are recessive.
b. Red is completely dominant.
c. Both red and white are pleiotropic.
d. Red and white are codominant.
e. Red shows incomplete dominance over white. - ✔️✔️e. Red shows incomplete dominance over
white.
Height in humans generally shows a normal (bell-shaped) distribution. What type of inheritance
most likely determines height? (Concept 14.3)
a. incomplete dominance
b. A combination of polygenic inheritance and environmental factors.
c. A combination of multiple alleles and codominance
d. A combination of complete dominance and environmental factors.
e. A combination of epistasis and environmental factors. - ✔️✔️b. A combination of polygenic
inheritance and environmental factors.
Folk singer Woody Guthrie died of Huntington's disease, an autosomal dominant disorder. Which
statement below must be true? (Concept 14.4)
a. His daughters will die of Huntington's disease but not his sons.
b. All of his children will develop Huntington's disease.
c. At least one of Woody Guthrie's parents must also have had the allele for Huntington's disease.
d. His sons will develop Huntington's disease but not his daughters.
e. There is not enough information to answer the question. - ✔️✔️c. At least one of Woody
Guthrie's parents must also have had the allele for Huntington's disease.
Various procedures can be used to detect genetic disorders before birth. Among the tests
discussed in this chapter, _____ is the least invasive, while _____ and _____ allow the
chromosomes of the fetus to be examined. (Concept 14.4)
a. amniocentesis ... fetoscopy ... chorionic villus sampling
b. ultrasound imaging ... chorionic villus sampling ... amniocentesis
c. amniocentesis ... ultrasound imaging ... chorionic villus sampling
d. ultrasound imaging ... fetoscopy... amniocentesis
chorionic villus sampling ... fetoscopy ... amniocentesis - ✔️✔️b. ultrasound imaging ... chorionic
villus sampling ... amniocentesis
If an individual is heterozygous for the sickle-cell trait _____. (Concept 14.4)
a. he or she will show no symptoms of the disease because the allele that causes sickle-cell
disease is recessive
b. he or she will be more apt to acquire a serious case of malaria
c. he or she will not develop full-blown sickle-cell disease but may show symptoms under certain
circumstances
d. he or she will have full-blown sickle-cell disease because the allele is dominant
e. none of the above - ✔️✔️a. he or she will show no symptoms of the disease because the allele
that causes sickle-cell disease is recessive
Dd is crossed with a Dd. Squres labeled clockwise from top left
Which of the plants will br true-breeding?
A) 1-4
B) none
C) 1 only
D) 2 and 3
E) 1 and 4 - ✔️✔️E) 1 and 4
What is the difference between a monohybrid cross and a dihybrid cross?
A) A monohybrid cross produces single progeny, whereas a dihybrid cross produces two progeny
3
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