Test bank saladin anatomy and physiology unity of form and function 6th ch4

4
Student: ___________________________________________________________________________

1.

A gene can be defined as an information-containing segment of RNA that codes for the production of a
polypeptide.
True False

2.

Although all cells synthesize phospholipids, there are no genes for phospholipids.
True False

3.

DNA never migrates from the nucleus to the cytoplasm to participate directly in protein synthesis.
True False

4.

The enzyme RNA polymerase participates in translation.
True False

5.

There are three codons that do not code for any amino acid.
True False

6.

All proteins made by the ribosomes are exported from a cell for use elsewhere in the body.
True False

7.

DNA is a polymer of ________________________, which consist of a sugar, a phosphate group, and a
________________________.
A. amino acids; nucleotide
B. nucleic acids; nucleotide
C. nucleotides; nitrogenous base
D. nucleotides; nucleic acid
E. proteins; nucleotide

8.

If a DNA molecule were known to be 22% thymine (T), what would be the percentage of guanine (G)?
A. 8%
B. 11%
C. 22%
D. 28%
E. 78%

9.

Which of these is the correct sequence from simpler to more complex?
A. chromatin, carbon, nucleotide, nitrogenous base, DNA
B. carbon, nitrogenous base, nucleotide, chromatin, DNA
C. chromatin, DNA, nucleotide, nitrogenous base, carbon
D. carbon, nucleotide, nitrogenous base, chromatin, DNA
E. carbon, nitrogenous base, nucleotide, DNA, chromatin

10. A ________________________ is composed of a granular cluster of eight proteins called
________________________ with DNA wound around them, plus a short segment of linker DNA.
A. nucleosome; centrosomes
B. nucleosome; histones
C. chromosome; histones
D. chromosome; centromeres
E. centromere; chromatin


11. ________________________ is the DNA base sequence complementary to the strand TGCCAT.
A. TGCCAT
B. UGCCAU
C. ACGGTA
D. ACGGUA
E. ACCGTA
12. A ________________________ contains the necessary information for the production of a molecule of
RNA.
A. genome
B. gene
C. nucleotide
D. genetic code
E. codon
13. All the DNA in one 23-chromosome set is called
A. the chromosome.
B. a chromatid.
C. chromatin.
D. the gene.
E. the genome.
14. The human genome consists of

A. about 35,000 genes.
B. over 2 million genes.
C. A, T, C, G, and U.
D. DNA and RNA.
E. the genotype and phenotype.
15. Copying genetic information from DNA into RNA is called ________________________, whereas using
the information contained in mRNA to make a polypeptide is called ________________________.
A. transcription; translation
B. translation; transcription
C. DNA replication; translation
D. DNA duplication; transcription
E. DNA translation; RNA transcription
16. All of the following are directly involved in translation except
A. DNA.
B. mRNA.
C. tRNA.
D. rRNA.
E. ribosomes.
17. Transcription occurs in the _________________, but most translation occurs in the _____________.
A. nucleus; cytoplasm
B. nucleus; nucleolus
C. cytoplasm; nucleus
D. nucleolus; cytoplasm
E. nucleolus; rough endoplasmic reticulum
18. ___________________ are turned on or off by regulatory proteins in accordance with changing needs for
the ___________________ they encode.
A. Enzymes; products
B. Ribosomes; proteins
C. Genes; proteins
D. Proteins; genes

E. Genes; ribosomes


19. Anticodons, codons, and base triplets correspond to ________________, respectively.
A. tRNA, DNA, and mRNA
B. DNA, tRNA, and mRNA
C. tRNA, mRNA, and DNA
D. DNA, RNA, and pre-mRNA
E. RNA, DNA, and pre-mRNA
20. After translation, a protein may undergo structural changes called ________________ modifications.
A. splicing
B. posttranscriptional
C. posttranslational
D. polyribosomal
E. secretory
21. Since there are no genes coding for carbohydrates, nucleic acids, or lipids, how do cells produce them?
A. Enzymes encoded by genes synthesize these products.
B. Cells are born with all the products they need.
C. Cells absorb these products by endocytosis.
D. Cells import these products from older cells.
E. Cells can produce carbohydrates, nucleic acids, and lipids out of proteins.
22.
The genetic code is the correspondence between the _______________ and the _______________ that
they represent.

1-18-2013
A. DNA molecule; 20 amino acids
B. DNA molecule; 64 amino acids
C. mRNA anticodons; 20 amino acids
D. mRNA codons; 64 amino acids

E. mRNA codons; 20 amino acids
23. You were able to radioactively tag and thereby trace an amino acid that is used to make insulin, a
hormone that will be exported out of the cell. The pathway of the tagged amino acid would be
A. free ribosome → cytosol → vesicle → extracellular fluid.
B. rough ER → Golgi complex → Golgi vesicle → extracellular fluid.
C. rough ER → smooth ER → Golgi complex → Golgi vesicle → extracellular fluid.
D. smooth ER → Golgi complex → Golgi vesicle → extracellular fluid.
E. smooth ER → Golgi complex → lysosome → extracellular fluid.
24. The gene coding for a polypeptide made of 51 amino acids would have a minimum number of
A. 20 bases.
B. 51 bases.
C. between 51 bases and 102 bases.
D. between 102 bases and 153 bases.
E. 153 bases.


25. This figure shows translation of mRNA. What does "A" show?
A. the molecule that carries codons
B. the molecule that carries anticodons
C. the molecule that carries base triplets
D. the molecule that carries amino acids
E. the molecule that carries tRNA
26. This figure shows translation of mRNA. What does "E" show?
A. a newly synthesized amino acid
B. a newly synthesized polypeptide
C. a newly synthesized nucleic acid
D. mRNA
E. tRNA
27. This figure shows translation of mRNA. What does "C" show?
A. mRNA

B. DNA
C. tRNA
D. mRNA bound to one amino acid
E. tRNA bound to one amino acid
28. DNA polymerase is most active in
A. S.
B. G1.
C. G2.
D. M.
E. G0.
29. G1, S, and G2 phases are collectively called
A. interphase.
B. telophase.
C. cytokinesis.
D. prophase.
E. anaphase.


30. All of the following participate in DNA replication except
A. DNA.
B. ribosomes.
C. DNA ligase.
D. DNA helicase.
E. DNA polymerase.
31. Cytokinesis overlaps with which phase of mitosis?
A. the S phase
B. telophase
C. metaphase
D. prophase
E. interphase

32. A mutation is
A. a change in size or shape of a cell.
B. a beneficial change in DNA structure.
C. a harmful change in DNA structure.
D. a neutral change in DNA structure.
E. a change in DNA structure that might be beneficial, harmful, or neutral.
33. DNA replication is called semiconservative because
A. each daughter DNA consists of one new helix and one old helix.
B. each daughter DNA consists of one new nucleotide and one old nucleotide.
C. each daughter DNA consists of one new chromatid and one old chromatid.
D. each daughter cell receives one new chromatid and one old chromatid.
E. each daughter cell receives one new helix and one old helix.
34. _________________ opens up one segment of the DNA helix during replication, whereas
_______________ adds complementary free nucleotides to the exposed DNA strand.
A. DNA ligase; DNA helicase
B. DNA helicase; DNA polymerase
C. DNA ligase; DNA polymerase
D. DNA helicase; DNA ligase
E. DNA polymerase; DNA ligase
35. All these can cause a mutation except
A. radiation.
B. viruses.
C. chemicals.
D. a mistake made by the DNA polymerase.
E. a mistake made by the RNA polymerase.
36. Cell division is stimulated by _______________ and suppressed by ____________.
A. mitosis; cytokinesis
B. mitosis; contact inhibition
C. cell size; cytokinesis
D. growth factors; contact inhibition

E. cell size; contact inhibition
37. The stage at which chromosomes aggregate along the equator of a cell is
A. prophase.
B. metaphase.
C. anaphase.
D. telophase.
E. interphase.


38. Which of these processes occurs during a cell's first gap (G1) phase?
A. DNA is semiconservatively replicated.
B. The nuclear envelope breaks down.
C. The cell synthesizes the enzymes that control mitosis.
D. The cell synthesizes proteins and grows.
E. The chromatin condenses into visible chromosomes.
39. Sister chromatids are pulled to opposite poles of a cell during
A. S phase.
B. G2 phase.
C. prophase.
D. metaphase.
E. anaphase.
40. Chromatin shortens and thickens, coiling into compact rods during
A. telophase.
B. anaphase.
C. interphase.
D. prophase.
E. metaphase.
41. Which of the following omits some stage(s) of the cell cycle?
A. G1, S, G2, mitotic phase
B. interphase, mitotic phase

C. G1, DNA replication, G2, mitotic phase
D. prophase, metaphase, anaphase, telophase, cytokinesis
E. interphase, prophase, metaphase, anaphase, telophase, cytokinesis
42. A karyotype shows the __________________ chromosomes sorted and isolated from a cell in
________________.
A. 23; interphase
B. 23; metaphase
C. 46; prophase
D. 46; metaphase
E. 46; S phase
43. All these are found in the karyotype of a normal human male, except
A. 46 chromosomes.
B. 23 pairs of homologous chromosomes.
C. X and Y chromosomes.
D. 46 chromatids.
E. 92 DNA molecules.
44. A cell finishing mitosis has ________________ DNA molecules, while a cell finishing DNA replication
has ______________ DNA molecules.
A. 46; 46
B. 46; 92
C. 46; 23
D. 23; 46
E. 23; 23
45. If one allele is not phenotypically expressed in the presence of another, we say that it is a(an)
________________ allele.
A. homozygous
B. heterozygous
C. recessive
D. dominant
E. suppressed

46. Hemophilia is caused by a sex-linked recessive allele. This means that
A. women can be carriers but cannot get hemophilia.
B. the gene is found on the Y chromosome.
C. a man can give the allele to his son but not to his daughter.
D. a son who has hemophilia inherited the allele from his mother.
E. a son who has hemophilia inherited the allele from his father.
47. Eye color is caused by genes at multiple loci. This phenomenon is called
A. pleiotropy.
B. sex linkage.
C. polygenic inheritance.
D. incomplete dominance.
E. multiple carriers.
48. Germ cells have ___________________ unpaired chromosomes and are thus called ____________
cells.
A. 23; somatic
B. 23; haploid
C. 23; diploid
D. 46; somatic
E. 46; diploid
49. The allele for cleft chin (C) is dominant to the allele for uncleft chin (c). A male and female who are both
heterozygous for cleft chin have a child. What is the chance that this child will have an uncleft chin?
A. 0
B. 25%
C. 50%
D. 75%
E. 100%
50. The alleles possessed by all members of a population collectively are called the
A. species DNA.

B. population DNA.
C. gene pool.
D. chromosomes.
E. genes.
51. In familial hypercholesterolemia, individuals with two abnormal alleles die of heart attacks in childhood,
those with only one abnormal allele typically die as young adults, and those with two normal alleles have
normal life expectancies. This exemplifies
A. penetrance.
B. codominance.
C. pleiotropy.
D. complete dominance.
E. incomplete dominance.
52. All of the body's nonreproductive cells, called ________________, usually have ______________ and
are thus called ____________ cells.
A. germ cells; 23 pairs of chromosomes; haploid
B. germ cells; 23 chromosomes; haploid
C. somatic cells; 23 pairs of chromosomes; haploid
D. somatic cells; 23 pairs of chromosomes; diploid
E. somatic cells; 23 chromosomes; diploid


4 Key
1.

A gene can be defined as an information-containing segment of RNA that codes for the production of
a polypeptide.
FALSE
Difficulty: Apply / Analyze
Saladin - Chapter 04 #3
Section: 4.2 Genes and Their Action

Topic: Genetics

2.

Although all cells synthesize phospholipids, there are no genes for phospholipids.
TRUE
Difficulty: Apply / Analyze
Saladin - Chapter 04 #4
Section: 4.2 Genes and Their Action
Topic: Genetics

3.

DNA never migrates from the nucleus to the cytoplasm to participate directly in protein synthesis.
TRUE
Difficulty: Remember / Understand
Saladin - Chapter 04 #5
Section: 4.2 Genes and Their Action
Topic: Genetics

4.

The enzyme RNA polymerase participates in translation.
FALSE
Difficulty: Remember / Understand
Saladin - Chapter 04 #6
Section: 4.2 Genes and Their Action
Topic: Genetics

5.

There are three codons that do not code for any amino acid.
TRUE
Difficulty: Remember / Understand
Saladin - Chapter 04 #7
Section: 4.2 Genes and Their Action
Topic: Genetics

6.

All proteins made by the ribosomes are exported from a cell for use elsewhere in the body.
FALSE
Difficulty: Apply / Analyze
Saladin - Chapter 04 #8
Section: 4.2 Genes and Their Action
Topic: Genetics

7.

DNA is a polymer of ________________________, which consist of a sugar, a phosphate group, and
a ________________________.
A. amino acids; nucleotide
B. nucleic acids; nucleotide
C. nucleotides; nitrogenous base
D. nucleotides; nucleic acid
E. proteins; nucleotide
Difficulty: Remember / Understand
Saladin - Chapter 04 #16
Section: 4.1 DNA and RNA-The Nucleic Acids
Topic: Genetics

8.

If a DNA molecule were known to be 22% thymine (T), what would be the percentage of guanine
(G)?
A. 8%
B. 11%
C. 22%
D. 28%
E. 78%
Difficulty: Evaluate / Create
Saladin - Chapter 04 #17
Section: 4.1 DNA and RNA-The Nucleic Acids
Topic: Genetics


9.

Which of these is the correct sequence from simpler to more complex?
A. chromatin, carbon, nucleotide, nitrogenous base, DNA
B. carbon, nitrogenous base, nucleotide, chromatin, DNA
C. chromatin, DNA, nucleotide, nitrogenous base, carbon
D. carbon, nucleotide, nitrogenous base, chromatin, DNA
E. carbon, nitrogenous base, nucleotide, DNA, chromatin
Difficulty: Apply / Analyze
Saladin - Chapter 04 #18
Section: 4.1 DNA and RNA-The Nucleic Acids
Topic: Genetics

10.

A ________________________ is composed of a granular cluster of eight proteins called
________________________ with DNA wound around them, plus a short segment of linker
DNA.
A. nucleosome; centrosomes
B. nucleosome; histones
C. chromosome; histones
D. chromosome; centromeres
E. centromere; chromatin
Difficulty: Remember / Understand
Saladin - Chapter 04 #19
Section: 4.1 DNA and RNA-The Nucleic Acids
Topic: Genetics

11.

________________________ is the DNA base sequence complementary to the strand TGCCAT.
A. TGCCAT
B. UGCCAU
C. ACGGTA
D. ACGGUA
E. ACCGTA
Difficulty: Remember / Understand
Saladin - Chapter 04 #20
Section: 4.1 DNA and RNA-The Nucleic Acids
Topic: Genetics

12.

A ________________________ contains the necessary information for the production of a molecule

of RNA.
A. genome
B. gene
C. nucleotide
D. genetic code
E. codon
Difficulty: Apply / Analyze
Saladin - Chapter 04 #21
Section: 4.2 Genes and Their Action
Topic: Genetics

13.

All the DNA in one 23-chromosome set is called
A. the chromosome.
B. a chromatid.
C. chromatin.
D. the gene.
E. the genome.
Difficulty: Remember / Understand
Saladin - Chapter 04 #22
Section: 4.2 Genes and Their Action
Topic: Genetics


14.

The human genome consists of
A. about 35,000 genes.
B. over 2 million genes.

C. A, T, C, G, and U.
D. DNA and RNA.
E. the genotype and phenotype.
Difficulty: Remember / Understand
Saladin - Chapter 04 #23
Section: 4.2 Genes and Their Action
Topic: Genetics

15.

Copying genetic information from DNA into RNA is called ________________________,
whereas using the information contained in mRNA to make a polypeptide is called
________________________.
A. transcription; translation
B. translation; transcription
C. DNA replication; translation
D. DNA duplication; transcription
E. DNA translation; RNA transcription
Difficulty: Remember / Understand
Saladin - Chapter 04 #24
Section: 4.2 Genes and Their Action
Topic: Genetics

16.

All of the following are directly involved in translation except
A. DNA.
B. mRNA.
C. tRNA.
D. rRNA.

E. ribosomes.
Difficulty: Apply / Analyze
Saladin - Chapter 04 #25
Section: 4.2 Genes and Their Action
Topic: Genetics

17.

Transcription occurs in the _________________, but most translation occurs in the
_____________.
A. nucleus; cytoplasm
B. nucleus; nucleolus
C. cytoplasm; nucleus
D. nucleolus; cytoplasm
E. nucleolus; rough endoplasmic reticulum
Difficulty: Remember / Understand
Saladin - Chapter 04 #26
Section: 4.2 Genes and Their Action
Topic: Genetics

18.

___________________ are turned on or off by regulatory proteins in accordance with changing needs
for the ___________________ they encode.
A. Enzymes; products
B. Ribosomes; proteins
C. Genes; proteins
D. Proteins; genes
E. Genes; ribosomes
Difficulty: Apply / Analyze

Saladin - Chapter 04 #27
Section: 4.2 Genes and Their Action
Topic: Genetics


19.

Anticodons, codons, and base triplets correspond to ________________, respectively.
A. tRNA, DNA, and mRNA
B. DNA, tRNA, and mRNA
C. tRNA, mRNA, and DNA
D. DNA, RNA, and pre-mRNA
E. RNA, DNA, and pre-mRNA
Difficulty: Remember / Understand
Saladin - Chapter 04 #28
Section: 4.2 Genes and Their Action
Topic: Genetics

20.

After translation, a protein may undergo structural changes called ________________
modifications.
A. splicing
B. posttranscriptional
C. posttranslational
D. polyribosomal
E. secretory
Difficulty: Remember / Understand
Saladin - Chapter 04 #29
Section: 4.2 Genes and Their Action

Topic: Genetics

21.

Since there are no genes coding for carbohydrates, nucleic acids, or lipids, how do cells produce
them?
A. Enzymes encoded by genes synthesize these products.
B. Cells are born with all the products they need.
C. Cells absorb these products by endocytosis.
D. Cells import these products from older cells.
E. Cells can produce carbohydrates, nucleic acids, and lipids out of proteins.
Difficulty: Apply / Analyze
Saladin - Chapter 04 #30
Section: 4.2 Genes and Their Action
Topic: Genetics

22.
The genetic code is the correspondence between the _______________ and the _______________
that they represent.

1-18-2013
A.
B.
C.
D.
E.

DNA molecule; 20 amino acids
DNA molecule; 64 amino acids
mRNA anticodons; 20 amino acids

mRNA codons; 64 amino acids
mRNA codons; 20 amino acids
Difficulty: Remember / Understand
Saladin - Chapter 04 #31
Section: 4.2 Genes and Their Action
Topic: Genetics


23.

You were able to radioactively tag and thereby trace an amino acid that is used to make insulin, a
hormone that will be exported out of the cell. The pathway of the tagged amino acid would be
A. free ribosome → cytosol → vesicle → extracellular fluid.
B. rough ER → Golgi complex → Golgi vesicle → extracellular fluid.
C. rough ER → smooth ER → Golgi complex → Golgi vesicle → extracellular fluid.
D. smooth ER → Golgi complex → Golgi vesicle → extracellular fluid.
E. smooth ER → Golgi complex → lysosome → extracellular fluid.
Difficulty: Apply / Analyze
Saladin - Chapter 04 #32
Section: 4.2 Genes and Their Action
Topic: Genetics

24.

The gene coding for a polypeptide made of 51 amino acids would have a minimum number of
A. 20 bases.
B. 51 bases.
C. between 51 bases and 102 bases.
D. between 102 bases and 153 bases.
E. 153 bases.

Difficulty: Apply / Analyze
Saladin - Chapter 04 #33
Section: 4.2 Genes and Their Action
Topic: Genetics

Saladin - Chapter 04

25.

This figure shows translation of mRNA. What does "A" show?
A. the molecule that carries codons
B. the molecule that carries anticodons
C. the molecule that carries base triplets
D. the molecule that carries amino acids
E. the molecule that carries tRNA
Difficulty: Apply / Analyze
Saladin - Chapter 04 #34
Section: 4.2 Genes and Their Action
Topic: Genetics


26.

This figure shows translation of mRNA. What does "E" show?
A. a newly synthesized amino acid
B. a newly synthesized polypeptide
C. a newly synthesized nucleic acid
D. mRNA
E. tRNA
Difficulty: Apply / Analyze

Saladin - Chapter 04 #35
Section: 4.2 Genes and Their Action
Topic: Genetics

27.

This figure shows translation of mRNA. What does "C" show?
A. mRNA
B. DNA
C. tRNA
D. mRNA bound to one amino acid
E. tRNA bound to one amino acid
Difficulty: Remember / Understand
Saladin - Chapter 04 #36
Section: 4.2 Genes and Their Action
Topic: Genetics

28.

DNA polymerase is most active in
A. S.
B. G1.
C. G2.
D. M.
E. G0.
Difficulty: Apply / Analyze
Saladin - Chapter 04 #37
Section: 4.3 DNA Replication and the Cell Cycle
Topic: Genetics

29.

G1, S, and G2 phases are collectively called
A. interphase.
B. telophase.
C. cytokinesis.
D. prophase.
E. anaphase.
Difficulty: Remember / Understand
Saladin - Chapter 04 #38
Section: 4.3 DNA Replication and the Cell Cycle
Topic: Genetics

30.

All of the following participate in DNA replication except
A. DNA.
B. ribosomes.
C. DNA ligase.
D. DNA helicase.
E. DNA polymerase.
Difficulty: Apply / Analyze
Saladin - Chapter 04 #39
Section: 4.3 DNA Replication and the Cell Cycle
Topic: Genetics

31.

Cytokinesis overlaps with which phase of mitosis?
A. the S phase

B. telophase
C. metaphase
D. prophase
E. interphase
Difficulty: Remember / Understand
Saladin - Chapter 04 #40
Section: 4.3 DNA Replication and the Cell Cycle
Topic: Genetics


32.

A mutation is
A. a change in size or shape of a cell.
B. a beneficial change in DNA structure.
C. a harmful change in DNA structure.
D. a neutral change in DNA structure.
E. a change in DNA structure that might be beneficial, harmful, or neutral.
Difficulty: Apply / Analyze
Saladin - Chapter 04 #41
Section: 4.3 DNA Replication and the Cell Cycle
Topic: Genetics

33.

DNA replication is called semiconservative because
A. each daughter DNA consists of one new helix and one old helix.
B. each daughter DNA consists of one new nucleotide and one old nucleotide.
C. each daughter DNA consists of one new chromatid and one old chromatid.
D. each daughter cell receives one new chromatid and one old chromatid.

E. each daughter cell receives one new helix and one old helix.
Difficulty: Apply / Analyze
Saladin - Chapter 04 #42
Section: 4.3 DNA Replication and the Cell Cycle
Topic: Genetics

34.

_________________ opens up one segment of the DNA helix during replication, whereas
_______________ adds complementary free nucleotides to the exposed DNA strand.
A. DNA ligase; DNA helicase
B. DNA helicase; DNA polymerase
C. DNA ligase; DNA polymerase
D. DNA helicase; DNA ligase
E. DNA polymerase; DNA ligase
Difficulty: Remember / Understand
Saladin - Chapter 04 #43
Section: 4.3 DNA Replication and the Cell Cycle
Topic: Genetics

35.

All these can cause a mutation except
A. radiation.
B. viruses.
C. chemicals.
D. a mistake made by the DNA polymerase.
E. a mistake made by the RNA polymerase.
Difficulty: Apply / Analyze
Saladin - Chapter 04 #44

Section: 4.3 DNA Replication and the Cell Cycle
Topic: Genetics

36.

Cell division is stimulated by _______________ and suppressed by ____________.
A. mitosis; cytokinesis
B. mitosis; contact inhibition
C. cell size; cytokinesis
D. growth factors; contact inhibition
E. cell size; contact inhibition
Difficulty: Apply / Analyze
Saladin - Chapter 04 #45
Section: 4.3 DNA Replication and the Cell Cycle
Topic: Genetics

37.

The stage at which chromosomes aggregate along the equator of a cell is
A. prophase.
B. metaphase.
C. anaphase.
D. telophase.
E. interphase.
Difficulty: Remember / Understand
Saladin - Chapter 04 #46
Section: 4.3 DNA Replication and the Cell Cycle
Topic: Genetics

38.

Which of these processes occurs during a cell's first gap (G1) phase?
A. DNA is semiconservatively replicated.
B. The nuclear envelope breaks down.
C. The cell synthesizes the enzymes that control mitosis.
D. The cell synthesizes proteins and grows.
E. The chromatin condenses into visible chromosomes.
Difficulty: Apply / Analyze
Saladin - Chapter 04 #47
Section: 4.3 DNA Replication and the Cell Cycle
Topic: Genetics

39.

Sister chromatids are pulled to opposite poles of a cell during
A. S phase.
B. G2 phase.
C. prophase.
D. metaphase.
E. anaphase.
Difficulty: Remember / Understand
Saladin - Chapter 04 #48
Section: 4.3 DNA Replication and the Cell Cycle
Topic: Genetics

40.

Chromatin shortens and thickens, coiling into compact rods during
A. telophase.

B. anaphase.
C. interphase.
D. prophase.
E. metaphase.
Difficulty: Remember / Understand
Saladin - Chapter 04 #49
Section: 4.3 DNA Replication and the Cell Cycle
Topic: Genetics

41.

Which of the following omits some stage(s) of the cell cycle?
A. G1, S, G2, mitotic phase
B. interphase, mitotic phase
C. G1, DNA replication, G2, mitotic phase
D. prophase, metaphase, anaphase, telophase, cytokinesis
E. interphase, prophase, metaphase, anaphase, telophase, cytokinesis
Difficulty: Apply / Analyze
Saladin - Chapter 04 #50
Section: 4.3 DNA Replication and the Cell Cycle
Topic: Genetics

42.

A karyotype shows the __________________ chromosomes sorted and isolated from a cell in
________________.
A. 23; interphase
B. 23; metaphase
C. 46; prophase
D. 46; metaphase

E. 46; S phase
Difficulty: Apply / Analyze
Saladin - Chapter 04 #51
Section: 4.4 Chromosomes and Heredity
Topic: Genetics

43.

All these are found in the karyotype of a normal human male, except
A. 46 chromosomes.
B. 23 pairs of homologous chromosomes.
C. X and Y chromosomes.
D. 46 chromatids.
E. 92 DNA molecules.
Difficulty: Evaluate / Create
Saladin - Chapter 04 #52
Section: 4.4 Chromosomes and Heredity
Topic: Genetics


44.

A cell finishing mitosis has ________________ DNA molecules, while a cell finishing DNA
replication has ______________ DNA molecules.
A. 46; 46
B. 46; 92
C. 46; 23
D. 23; 46
E. 23; 23
Difficulty: Evaluate / Create

Saladin - Chapter 04 #53
Section: 4.4 Chromosomes and Heredity
Topic: Genetics

45.

If one allele is not phenotypically expressed in the presence of another, we say that it is a(an)
________________ allele.
A. homozygous
B. heterozygous
C. recessive
D. dominant
E. suppressed
Difficulty: Apply / Analyze
Saladin - Chapter 04 #54
Section: 4.4 Chromosomes and Heredity
Topic: Genetics

46.

Hemophilia is caused by a sex-linked recessive allele. This means that
A. women can be carriers but cannot get hemophilia.
B. the gene is found on the Y chromosome.
C. a man can give the allele to his son but not to his daughter.
D. a son who has hemophilia inherited the allele from his mother.
E. a son who has hemophilia inherited the allele from his father.
Difficulty: Evaluate / Create
Saladin - Chapter 04 #55
Section: 4.4 Chromosomes and Heredity
Topic: Genetics

47.

Eye color is caused by genes at multiple loci. This phenomenon is called
A. pleiotropy.
B. sex linkage.
C. polygenic inheritance.
D. incomplete dominance.
E. multiple carriers.
Difficulty: Remember / Understand
Saladin - Chapter 04 #56
Section: 4.4 Chromosomes and Heredity
Topic: Genetics

48.

Germ cells have ___________________ unpaired chromosomes and are thus called ____________
cells.
A. 23; somatic
B. 23; haploid
C. 23; diploid
D. 46; somatic
E. 46; diploid
Difficulty: Remember / Understand
Saladin - Chapter 04 #57
Section: 4.4 Chromosomes and Heredity
Topic: Genetics


49.

The allele for cleft chin (C) is dominant to the allele for uncleft chin (c). A male and female who are
both heterozygous for cleft chin have a child. What is the chance that this child will have an uncleft
chin?
A. 0
B. 25%
C. 50%
D. 75%
E. 100%
Difficulty: Evaluate / Create
Saladin - Chapter 04 #58
Section: 4.4 Chromosomes and Heredity
Topic: Genetics

50.

The alleles possessed by all members of a population collectively are called the
A. species DNA.
B. population DNA.
C. gene pool.
D. chromosomes.
E. genes.
Difficulty: Remember / Understand
Saladin - Chapter 04 #59
Section: 4.4 Chromosomes and Heredity
Topic: Genetics

51.

In familial hypercholesterolemia, individuals with two abnormal alleles die of heart attacks in

childhood, those with only one abnormal allele typically die as young adults, and those with two
normal alleles have normal life expectancies. This exemplifies
A. penetrance.
B. codominance.
C. pleiotropy.
D. complete dominance.
E. incomplete dominance.
Difficulty: Remember / Understand
Saladin - Chapter 04 #60
Section: 4.4 Chromosomes and Heredity
Topic: Genetics

52.

All of the body's nonreproductive cells, called ________________, usually have ______________
and are thus called ____________ cells.
A. germ cells; 23 pairs of chromosomes; haploid
B. germ cells; 23 chromosomes; haploid
C. somatic cells; 23 pairs of chromosomes; haploid
D. somatic cells; 23 pairs of chromosomes; diploid
E. somatic cells; 23 chromosomes; diploid
Difficulty: Apply / Analyze
Saladin - Chapter 04 #61
Section: 4.4 Chromosomes and Heredity
Topic: Genetics


4 Summary
Category
Difficulty: Apply / Analyze

Difficulty: Evaluate / Create
Difficulty: Remember / Understand
Saladin - Chapter 04
Section: 4.1 DNA and RNA-The Nucleic Acids
Section: 4.2 Genes and Their Action
Section: 4.3 DNA Replication and the Cell Cycle
Section: 4.4 Chromosomes and Heredity
Topic: Genetics

# of Questions
23
5
24
53
5
22
14
11
52