Campbell Biology Chapter 14 Test Bank
1. 1) Which of the following statements is correct in describing the terms
monohybrid cross and dihybrid cross?: B) A dihybrid cross involves
organisms that are heterozygous for two characters that are being
studied, and a monohybrid cross involves organisms that are
heterozygous for only one character being stud- ied.
2. 2) What was the most significant conclusion that Gregor Mendel drew
from his experiments with pea plants?: B) Traits are inherited in discrete
units and are not the result of "blending."
3. 3) How many unique gametes could be produced through
independent assortment by an individual with the genotype
AaBbCCDdEE?: B) 8
4. 4) The individual with genotype AaBbCCDdEE can make many kinds of
gametes. Which of the following correctly describes why this situation is
possible?: C) different possible assortment of chromosomes into
gametes occurs
5. 5) Mendel continued some of his experiments into the F2 or F3 generation
in order to .: B) observe whether or not a recessive trait would
reappear
6. 6) Which of the following statements about independent assortment or
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, Campbell Biology Chapter 14 Test Bank
segregation is correct?: A) The law of independent assortment
describes the behavior of two or more genes relative to one another.
7. 7) A sexually reproducing animal has two unlinked genes, one for
head shape (H) and one for tail length (T). Its genotype is HhTt. Which of
the following genotypes is possible in a gamete from this organism?: D)
HT
8. 8) Which of the following statements correctly describes how Mendel ac-
counted for the observation that traits had disappeared in the F1 generation
and then reappeared in the F2 generation?: C) Traits can be dominant or
reces- sive, and the recessive traits were "hidden" by the dominant
ones in the F1.
9. 9) Which of the following statements correctly explains the fact that all
seven of the pea plant traits studied by Mendel obeyed the principle of inde-
pendent assortment?: D) All of the genes controlling the traits behaved
as if they were on different chromosomes.
10.10) Mendel's observation of the segregation of alleles in gamete
formation has its basis in which of the following phases of cell division?: D)
anaphase I of meiosis
11.11) Mendel's law of independent assortment has its basis in which of
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, Campbell Biology Chapter 14 Test Bank
the following events of meiosis I?: C) alignment of pairs of homologous
chromo- somes along the middle of the cell
12. 12) Use the figure and the following description to answer the question.
In a particular plant, leaf color is controlled by gene locus D. Plants with at
least one allele D have dark green leaves, and plants with the homozygous
recessive dd genotype have light green leaves. A true-breeding, dark-
leaved
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1. 1) Which of the following statements is correct in describing the terms
monohybrid cross and dihybrid cross?: B) A dihybrid cross involves
organisms that are heterozygous for two characters that are being
studied, and a monohybrid cross involves organisms that are
heterozygous for only one character being stud- ied.
2. 2) What was the most significant conclusion that Gregor Mendel drew
from his experiments with pea plants?: B) Traits are inherited in discrete
units and are not the result of "blending."
3. 3) How many unique gametes could be produced through
independent assortment by an individual with the genotype
AaBbCCDdEE?: B) 8
4. 4) The individual with genotype AaBbCCDdEE can make many kinds of
gametes. Which of the following correctly describes why this situation is
possible?: C) different possible assortment of chromosomes into
gametes occurs
5. 5) Mendel continued some of his experiments into the F2 or F3 generation
in order to .: B) observe whether or not a recessive trait would
reappear
6. 6) Which of the following statements about independent assortment or
1/7
, Campbell Biology Chapter 14 Test Bank
segregation is correct?: A) The law of independent assortment
describes the behavior of two or more genes relative to one another.
7. 7) A sexually reproducing animal has two unlinked genes, one for
head shape (H) and one for tail length (T). Its genotype is HhTt. Which of
the following genotypes is possible in a gamete from this organism?: D)
HT
8. 8) Which of the following statements correctly describes how Mendel ac-
counted for the observation that traits had disappeared in the F1 generation
and then reappeared in the F2 generation?: C) Traits can be dominant or
reces- sive, and the recessive traits were "hidden" by the dominant
ones in the F1.
9. 9) Which of the following statements correctly explains the fact that all
seven of the pea plant traits studied by Mendel obeyed the principle of inde-
pendent assortment?: D) All of the genes controlling the traits behaved
as if they were on different chromosomes.
10.10) Mendel's observation of the segregation of alleles in gamete
formation has its basis in which of the following phases of cell division?: D)
anaphase I of meiosis
11.11) Mendel's law of independent assortment has its basis in which of
2/7
, Campbell Biology Chapter 14 Test Bank
the following events of meiosis I?: C) alignment of pairs of homologous
chromo- somes along the middle of the cell
12. 12) Use the figure and the following description to answer the question.
In a particular plant, leaf color is controlled by gene locus D. Plants with at
least one allele D have dark green leaves, and plants with the homozygous
recessive dd genotype have light green leaves. A true-breeding, dark-
leaved
3/7
