Question 1

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

Accepted Answer

A) True 
 B)False

Question 2

Oncogenes and tumor-suppressor genes have similar effects on cell division.

Accepted Answer

A) True 
 B)False

Question 3

Which of these is the correct sequence from simple to more complex?

Accepted Answer

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

Question 4

A karyotype shows the __________ chromosomes sorted and isolated from a cell in __________.

Accepted Answer

A)  23; interphase
B)  23; metaphase
C)  46; prophase
D)  46; metaphase
E)  46; S phase

Question 5

A cell starting prophase has 92 molecules of DNA in its nucleus.

Accepted Answer

A) True 
 B)False

Question 6

The genetic code is the link between the __________ and the __________ that they represent.

Accepted Answer

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

Question 7

A __________ contains the necessary information for the production of a molecule of RNA.

Accepted Answer

A)  genome
B)  gene
C)  nucleotide
D)  genetic code
E)  codon

Question 8

A __________ is composed of a granular cluster of eight proteins called __________ with DNA wound around them.

Accepted Answer

A)  nucleosome; centrosomes
B)  nucleosome; histones
C)  chromosome; histones
D)  chromosome; centromeres
E)  centromere; chromatin

Question 9

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 __________.

Accepted Answer

A)  free ribosome  →\rarr→  cytosol  →\rarr→  vesicle  →\rarr→  extracellular fluid
B)  rough ER  →\rarr→  Golgi complex  →\rarr→  Golgi vesicle  →\rarr→  extracellular fluid
C)  rough ER  →\rarr→  smooth ER  →\rarr→  Golgi complex  →\rarr→  Golgi vesicle  →\rarr→  extracellular fluid
D)  smooth ER  →\rarr→  Golgi complex  →\rarr→  Golgi vesicle  →\rarr→  extracellular fluid
E)  smooth ER  →\rarr→  Golgi complex  →\rarr→  lysosome  →\rarr→  extracellular fluid

Question 10

A cell finishing mitosis has __________ DNA molecules,while a cell finishing DNA replication has __________ DNA molecules.

Accepted Answer

A)  46; 46
B)  46; 92
C)  46; 23
D)  23; 46
E)  23; 23

Question 11

Which of these cannot cause a mutation?

Accepted Answer

A)  Radiation
B)  A virus
C)  A chemical
D)  A mistake made by the DNA polymerase
E)  A mistake made by the RNA polymerase

Question 12

Chromatin shortens and thickens,coiling into compact rods during __________ of mitosis.

Accepted Answer

A)  telophase
B)  anaphase
C)  interphase
D)  prophase
E)  metaphase

Question 13

The alleles possessed by all members of a population collectively are called the __________.

Accepted Answer

A)  species DNA
B)  population DNA
C)  gene pool
D)  genetic drift
E)  phenotype

Question 14

DNA polymerase is most active during which phase of the cell cycle?

Accepted Answer

A)  S
B)  G1
C)  G2
D)  M
E)  G0

Question 15

Genes produce their products __________.

Accepted Answer

A)  as their products are needed or not
B)  at a steady rate all the time
C)  only when the appropriate hormone is present
D)  when the transcription activator is inhibited by an extracellular signal

Question 16

__________ are turned on or off by regulatory proteins in accordance with changing needs for the __________ they encode.

Accepted Answer

A)  Enzymes; products
B)  Ribosomes; proteins
C)  Genes; proteins
D)  Proteins; genes
E)  Genes; ribosomes

Question 17

What is the complementary DNA base sequence to the DNA strand TGCCAT?

Accepted Answer

A)  TGCCAT
B)  UGCCAU
C)  ACGGTA
D)  ACGGUA
E)  ACCGTA

Question 18

Which molecule contains anticodons?

Accepted Answer

A)  An mRNA
B)  A DNA molecule
C)  A tRNA
D)  An rRNA
E)  A cDNA

Question 19

DNA replication is called semiconservative because __________.

Accepted Answer

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

Question 20

Which of these is not found in the karyotype of a normal human male?

Accepted Answer

A)  46 chromosomes
B)  23 pairs of homologous chromosomes
C)  X and Y chromosomes
D)  46 chromatids
E)  92 DNA molecules

Exam 4: Genetics of Cellular Function

Which molecule contains anticodons?

Correct AnswerverifiedShow Answer

A cell starting prophase has 92 molecules of DNA in its nucleus.

Correct AnswerverifiedShow Answer

__________ are turned on or off by regulatory proteins in accordance with changing needs for the __________ they encode.

Correct AnswerverifiedShow Answer

Which of these is the correct sequence from simple to more complex?

Correct AnswerverifiedShow Answer

DNA replication is called semiconservative because __________.

Correct AnswerverifiedShow Answer

A cell finishing mitosis has __________ DNA molecules,while a cell finishing DNA replication has __________ DNA molecules.

Correct AnswerverifiedShow Answer

The alleles possessed by all members of a population collectively are called the __________.

Correct AnswerverifiedShow Answer

Chromatin shortens and thickens,coiling into compact rods during __________ of mitosis.

Correct AnswerverifiedShow Answer

Which of these is not found in the karyotype of a normal human male?

Correct AnswerverifiedShow Answer

Genes produce their products __________.

Correct AnswerverifiedShow Answer

A __________ contains the necessary information for the production of a molecule of RNA.

Correct AnswerverifiedShow Answer

The genetic code is the link between the __________ and the __________ that they represent.

Correct AnswerverifiedShow Answer

Oncogenes and tumor-suppressor genes have similar effects on cell division.

Correct AnswerverifiedShow Answer

A karyotype shows the __________ chromosomes sorted and isolated from a cell in __________.

Correct AnswerverifiedShow Answer

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 __________.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

What is the complementary DNA base sequence to the DNA strand TGCCAT?

Correct AnswerverifiedShow Answer

A __________ is composed of a granular cluster of eight proteins called __________ with DNA wound around them.

Correct AnswerverifiedShow Answer

DNA polymerase is most active during which phase of the cell cycle?

Correct AnswerverifiedShow Answer

Which of these cannot cause a mutation?

Correct AnswerverifiedShow Answer

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are turned on or off by regulatory proteins in accordance with changing needs for the they encode.

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A cell finishing mitosis has DNA molecules,while a cell finishing DNA replication has DNA molecules.

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The genetic code is the link between the and the that they represent.

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A karyotype shows the chromosomes sorted and isolated from a cell in .

Correct Answer
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A is composed of a granular cluster of eight proteins called with DNA wound around them.

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