Inheritance Unit Quiz 2
17 Questions
| Total Attempts: 134
Test your understanding of inheritence unit of MCPS biology.
Questions and Answers
- 1.What process produces male and female reproductive cells in plants?
- A.
Mitosis
- B.
Meiosis
- C.
Replication
- D.
Fertilization
- 2.In humans the trait of having freckles (F) is dominant to not having freckles (f). Which genotype and phenotype are correctly paired?
- A.
FF—no freckles
- B.
Ff—no freckles
- C.
Ff—freckles
- D.
Ff—freckles
- 3.The allele for tasting PTC (T) is dominant to the allele for nontasting PTC (t). Which of these sets of parents can produce offspring who cannot taste PTC?
- A.
A heterozygous male who can taste PTC and a homozygous female who can taste PTC
- B.
A homozygous male who cannot taste PTC and a homozygous female who can taste PTC
- C.
a heterozygous male who can taste PTC and a heterozygous female who can taste PTC
- D.
A homozygous male who can taste PTC and a homozygous who can taste PTC
- 4.A couple has several children. All of the children have attached earlobes because their parents' genotypes can only produce children with attached earlobes. The allele for unattached earlobes (E) is dominant, and the allele for attached earlobes (e) is recessive. Which of these are most likely the genotypes of the two parents?
- A.
Ee and ee
- B.
EE and ee
- C.
Ee and Ee
- D.
Ee and ee
- 5.A pair of laboratory mice are crossed to obtain offspring. Three alleles found in the female gamete are ABC. Three alleles found in the male gamete are Abc. Which of these is a possible combination of alleles for the offspring produced by these mice?
- A.
AaBbCc
- B.
AABBCC
- C.
Aabbcc
- D.
AABbCc
- 6.One parent is homozygous dominant for brown hair (BB). The other parent is heterozygous for brown hair (Bb). What is the probability that the offspring will have brown hair?
- A.
100%
- B.
75%
- C.
50%
- D.
25%
- 7.The allele for attached earlobes (e) is recessive to the allele for unattached earlobes (E). A woman with the genotype (Ee) and a man with the genotype (ee) have a child. What is the probability that the child is heterozygous for this trait?
- A.
0%
- B.
25%
- C.
50%
- D.
75%
- 8.
![In guinea pigs, the allele for black fur (B) is dominant. The allele for brown fur (b) is recessive. Two guinea pigs were crossed as shown in the Punnett square below. Numbers 1, 2, 3, and 4 represent the types of offspring produced from the cross.
What is the probability that an offspring from this cross would have brown fur?
- ProProfs]( "In guinea pigs, the allele for black fur (B) is dominant. The allele for brown fur (b) is recessive. Two guinea pigs were crossed as shown in the Punnett square below. Numbers 1, 2, 3, and 4 represent the types of offspring produced from the cross.
What is the probability that an offspring from this cross would have brown fur?")
In guinea pigs, the allele for black fur (B) is dominant. The allele for brown fur (b) is recessive. Two guinea pigs were crossed as shown in the Punnett square below. Numbers 1, 2, 3, and 4 represent the types of offspring produced from the cross. What is the probability that an offspring from this cross would have brown fur?- A.
0%
- B.
25%
- C.
50%
- D.
100%
- 9.In guinea pigs, the allele for black fur (B) is dominant. A homozygous guinea pig (BB) is crossed with a heterozygous guinea pig (Bb). What are the phenotypes of the parents?
- A.
Both parents have black fur.
- B.
Both parents have brown fur.
- C.
One parent has black fur, and the other has brown fur.
- D.
One parent has a mixture of black and brown fur, and the other has black fur.
- 10.In a species of fly, the allele for red eyes (R) is dominant to the allele for brown eyes (r). Red eye color in the flies is not sex-linked. Students crossed male and female flies that had red eyes and recorded the eye color of their offspring. Their data are shown below. Fly Offspring Eye Color Number of Offspring Red 77 Brown 27 What are the most likely genotypes of the parent flies?
- A.
RR and rr
- B.
Rr and Rr
- C.
Rr and rr
- D.
RR and Rr
- 11.A sperm cell of a fruit fly has 4 chromosomes. How many chromosomes are in the cells of a fruit fly’s leg?
- A.
2
- B.
4
- C.
8
- D.
16
- 12.Sex cells are produced during
- A.
Mitosis
- B.
Meiosis
- C.
Fertilization
- D.
Binary fission
- 13.Which of these represents the number of chromosomes in cells before and after the process of meiosis?
- A.
N -> n
- B.
N -> 2n
- C.
2n -> n
- D.
2n -> 2n
- 14.How many chromosomes are in a normal human skin cell?
- A.
23
- B.
46
- C.
69
- D.
92
- 15.Which processes of cell division creates genetic diversity?
- A.
Mitosis
- B.
Meiosis
- 16.During prophase I, sections of homologous chromosomes switch places. What is this process called?
- A.
Binary fusion
- B.
Mutation
- C.
Crossing over
- D.
Cytokinesis
- 17.What results in the separation of chromosomes randomly and independently during the production of sperm and egg cells (meiosis)?
- A.
Binary fission
- B.
Crossing over
- C.
Independent assortment
- D.
Mitosis
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