Download MCC Biology Test 3 2014 Ch 9-12

Name: ________________________ Class: ___________________ Date: __________
MCC Biology Test 3 2014 Ch 9-12
Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
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1. As a cell becomes larger, its
a. volume increases faster than its surface area.
b. surface area increases faster than its volume.
c. volume increases, but its surface area stays the same.
d. surface area stays the same, but its volume increases.
2. When during the cell cycle is a cell’s DNA replicated?
a. G1 phase
c. S phase
b. G2 phase
d. M phase
3. During which phase of mitosis do the chromosomes line up along the middle of the dividing cell?
a. prophase
c. metaphase
b. telophase
d. anaphase
4. Cancer is a disorder in which some cells have lost the ability to control their
a. size.
c. growth rate.
b. spindle fibers.
d. surface area.
Figure 10–2
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5. Cell division is represented in Figure 10-2 by the letter?
a. A.
c. C.
b. B.
d. D
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ID: A
Name: ________________________
ID: A
Figure 10–3
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6. The structure labeled A in Figure 10-3 is called the
a. centromere.
c. sister chromatid.
b. centriole.
d. spindle.
7. The structures labeled B in Figure 10-3 are called
a. centromeres.
c. sister chromatids.
b. centrioles.
d. spindles.
8. When Mendel crossed true-breeding tall plants with true-breeding short plants, all the offspring were tall
because
a. the allele for tall plants is recessive.
b. the allele for short plants is dominant.
c. the allele for tall plants is dominant.
d. they were true-breeding like their parents.
9. How many different allele combinations would be found in the gametes produced by a pea plant whose
genotype was RrYY?
a. 2
c. 8
b. 4
d. 16
10. If an organism’s diploid number is 12, its haploid number is
a. 12.
c. 24.
b. 6.
d. 3.
11. What is shown in Figure 11-1?
Figure 11–1
a.
b.
independent assortment
anaphase I of meiosis
c.
d.
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crossing-over
incomplete dominance
Name: ________________________
ID: A
____ 12. Chromosomes form tetrads during
a. prophase of meiosis I.
c. prophase of meiosis II.
b. metaphase of meiosis I.
d. metaphase of meiosis II.
____ 13. Unlike mitosis, meiosis results in the formation of
a. two genetically identical diploid cells.
b. four genetically different haploid cells.
c. four genetically identical haploid cells.
d. two genetically different diploid cells.
____ 14. The principle of dominance states that
a. all alleles are dominant.
b. all alleles are recessive.
c. some alleles are dominant and others are recessive.
d. alleles are neither dominant nor recessive.
____ 15. When Mendel allowed the tall F1 pea plants (Tt) to self-pollinate,
a. the offspring were of medium height.
b. all of the offspring were tall.
c. all of the offspring were short.
d. some of the offspring were short.
____ 16. Gametes are produced by the process of
a. mitosis.
c. crossing-over.
b. meiosis.
d. replication.
____ 17. The diploid number of chromosomes in a human skin cell is 46. The number of chromosomes found in a
human ovum is
a. 46.
c. 23.
b. 92.
d. 12.5.
____ 18. Refer to the illustration above. Which of the following correctly indicates the order in which these events
occur?
a. A, B, C, D
c. B, A, C, D
b. C, B, A, D
d. A, C, B, D
____ 19. Mendel's law of segregation states that
a. pairs of alleles are dependent on one another when separation occurs during gamete
formation.
b. pairs of alleles separate independently of one another after gamete formation.
c. each pair of alleles remains together when gametes are formed.
d. the two alleles for a trait separate when gametes are formed.
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Name: ________________________
ID: A
____ 20. The phenotype of an organism
a. represents its genetic composition.
b. is the physical appearance of a trait.
c. occurs only in dominant pure organisms.
d. cannot be seen.
In humans, having freckles (F) is dominant to not having freckles (f). The inheritance of these traits can
be studied using a Punnett square similar to the one shown below.
____ 21. Refer to the illustration above. The child represented in box 1 in the Punnett square would
a. be homozygous for freckles.
c. be heterozygous for freckles.
b. have an extra freckles chromosome.
d. not have freckles.
____ 22. Refer to the illustration above. Which box in the Punnett square represents a child who does not have
freckles?
a. box 1
c. box 3
b. box 2
d. box 4
____ 23. The unknown genotype of an individual with a dominant phenotype can be determined using
a. a ratio.
c. probability
b. a dihybrid cross.
d. a test cross.
____ 24. If a characteristic is sex-linked, it
a. occurs most commonly in males.
c. can never occur in females.
b. occurs only in females.
d. is always fatal.
____ 25. Which of the following is NOT an example of the results of mitosis?
a. a pair of identical twins
b. a group of rooted plant cuttings from a single plant
c. the cells produced by the asexual reproduction of a single-celled organism
d. the offspring produced by two parents
e. healing of a wound
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Name: ________________________
ID: A
____ 26. Strictly speaking, mitosis and meiosis are divisions of the
a. nucleus.
b. cytoplasm.
c. chromosomes.
d. nucleus and chromosomes.
e. nucleus, cytoplasm, and chromosomes.
____ 27. During the "gap" phases of the cell cycle, most of the activity is directed toward
a. DNA replication.
b. nuclear membrane synthesis.
c. resting for the next step.
d. sorting the chromosomes.
e. synthesizing cytoplasmic organelles.
____ 28. When a cell undergoes mitosis,
a. the daughter cells have identical genes.
b. the daughter cell has genes identical to those of the mother cell that produced it.
c. the amount of cytoplasm in the mother cell and in each of the daughter cells is equal.
d. there is an exact duplication and division of all of the organelles between daughter cells.
e. the daughter cells have identical genes and the daughter cell has genes identical to those
of the mother cell that produced it.
____ 29. Homologous chromosomes
a. pair up during meiosis.
b. have alleles for the same characteristics even though the gene expression may not be the
same.
c. are in pairs, one chromosome of each pair from the father and one from the mother.
d. separate from each other during meiosis I.
e. all of these
____ 30. The cell in this illustration is in ____.
a.
b.
c.
d.
e.
prophase I.
metaphase I.
anaphase I.
prophase II.
anaphase II.
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Name: ________________________
ID: A
____ 31. Crossing over occurs during
a. anaphase I.
b. metaphase II.
c. prophase I.
d. prophase II.
e. telophase II.
____ 32. Diploid organisms
a. have corresponding alleles on homologous chromosomes.
b. are usually the result of the fusion of two haploid gametes.
c. have two sets of chromosomes.
d. have pairs of homologous chromosomes.
e. all of these
____ 33. Which of the following genotypes is homozygous?
a. AaBB
b. aABB
c. aaBB
d. aaBb
e. AaBb
____ 34. Which offspring in the illustration below are homozygous recessive for both traits?
a. A
b. B
c. C
d. D
e. none of these
____ 35. Mendel's theory of independent assortment states that
a. one allele is always dominant to another.
b. hereditary units from the male and female parents are blended in the offspring.
c. the two hereditary units that influence a certain trait segregate during gamete formation.
d. each hereditary unit is inherited separately from other hereditary units.
e. all of these
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Name: ________________________
ID: A
____ 36. Some dogs have erect ears; others have drooping ears. Some dogs bark when following a scent; others are
silent. Erect ears and barking are due to dominant alleles located on different chromosomes. A dog
homozygous for both dominant traits is mated to a droopy-eared, silent follower. The expected phenotypic
ratio in the F1 generation is
a. 9:3:3:1.
b. 100 percent of one phenotype.
c. 1:1.
d. 1:2:1.
e. none of these
____ 37. If all the offspring of a cross have the genotype Aa Bb, the parents of the cross will most likely be
a. AA BB × aa bb.
b. AA bb × aa BB.
c. Aa Bb × Aa Bb.
d. Aa bb × aa Bb.
e. AA BB × aa bb or AA bb × aa BB.
____ 38. Blood types (A, B, and O) are controlled by
a. sex-linked genes.
b. linked genes.
c. incompletely dominant genes.
d. multiple alleles.
e. none of these
____ 39. Susan, a mother with type B blood, has a child with type O blood. She claims that Craig, who has type A
blood, is the father. He claims that he cannot possibly be the father. Further blood tests ordered by the judge
reveal that Craig is AA. The judge rules that
a. Susan is right and Craig must pay child support.
b. Craig is right and doesn't have to pay child support.
c. Susan cannot be the real mother of the child; there must have been an error made at the
hospital.
d. it is impossible to reach a decision based on the limited data available.
e. none of these
____ 40. If red (RR) is crossed with white (rr) and produces a pink flower (Rr) and tall (D) is dominant to dwarf (d),
the F2 phenotypic ratio from a cross of RR dd with rr DD would be
a. 9:3:3:1.
b. 1:1:1:1.
c. 1:2:2:4:1:2:1:2:1.
d. 3:6:3:1:2:1.
e. none of these
____ 41. The building blocks of nucleic acids are
a. amino acids.
b. nucleotides.
c. pentose sugars.
d. phosphate groups.
e. nitrogenous bases.
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Name: ________________________
ID: A
____ 42. Which boxed area in the generalized karyotype illustration below represents a pair of sex chromosomes?
a. A
b. B
c. C
d. both A and B
e. none of these
____ 43. The Punnett square illustration below shows that
a. half of human sperm carry a Y chromosome.
b. half of human zygotes are XY.
c. all zygotes carry an X chromosome.
d. gender depends upon which type of sperm fertilizes the egg.
e. all of these
____ 44. A color-blind man and a woman with normal vision whose father was color blind have a son. Color
blindness, in this case, is caused by an X-linked recessive gene. If only the male offspring are considered, the
probability that their son is color blind is
a. .25 (or 25 percent).
b. .50 (or 50 percent).
c. .75 (or 75 percent).
d. 1.00 (or 100 percent).
e. none of these
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