Question 1

In DNA sequencing, ddNTPs are added at much lower concentrations than are dNTPs. If ddNTPs were added at higher concentrations, what would be the most likely result?

Accepted Answer

A)   The ddNTPs would bind to one another.
B)   All of the reactions would terminate early and long strands would not be produced.
C)   The reactions would terminate early or late.
D)   The ddNTPs would bind to DNA polymerase.
E)   The ddNTPs would not bind to the dye.F) A) and D)
G) None of the above

Question 2

Gene inactivation studies have allowed us to

Accepted Answer

A)   determine the minimal number of genes humans need to survive.
B)   demonstrate that C. elegans needs most of its genes.
C)   investigate the minimal number of genes needed to sustain life.
D)   create artificial life in a test tube.
E)   All of the aboveF) All of the above
G) A) and B)

Question 3

The diagram below shows high-throughput sequencing. At which step does PCR take place?

Accepted Answer

A)   Step 1
B)   Step 2
C)   Step 3
D)   Step 4
E)   Step 5 or laterF) B) and C)
G) A) and E)

Question 4

The maximum length of DNA that can be sequenced at one time by means of the standard technology is about _______ bases.

Accepted Answer

A)   700
B)   3,000
C)   7,000
D)   30,000
E)   70,000F) A) and B)
G) D) and E)

Question 5

Which of the following statements comparing the worm C. elegans and the fly D. melanogaster is true?

Accepted Answer

A)   The fly has a larger genome.
B)   The fly has more genes.
C)   The fly undergoes a more complicated developmental transformation.
D)   Both a and b
E)   Both a and cF) B) and E)
G) A) and B)

Question 6

Which of the following is not a main type of transposon in the human genome?

Accepted Answer

A)   SINEs
B)   LINEs
C)   DNA transposons
D)   Retrotransposons
E)   Each of the above is a main type of human transposon.F) All of the above
G) B) and D)

Question 7

Which of the following statements about pseudogenes is true?

Accepted Answer

A)   There often is little selective pressure to get rid of pseudogenes.
B)   The sequences of a pseudogene and its functional counterpart must be very different.
C)   In some gene families, pseudogenes outnumber functional genes.
D)   Both a and b
E)   Both a and cF) B) and D)
G) A) and D)

Question 8

During the process of gene expression, RNA polymerase would most likely be found

Accepted Answer

A)   in a highly repetitive sequence.
B)   in a noncoding sequence.
C)   in an open reading frame.
D)   at a metagenomic site.
E)   in a pseudogene.F) B) and D)
G) A) and B)

Question 9

The coding region of a gene, also known as a(n) _______, can usually be recognized by the presence of a(n) _______ codon and a(n) _______ codon.

Accepted Answer

open readi...

Question 10

A comparison of the genomes of yeast and bacteria shows that only yeast has many genes for

Accepted Answer

A)   energy metabolism.
B)   cell wall synthesis.
C)   intracellular protein targeting.
D)   DNA-binding proteins.
E)   RNA polymerase.F) C) and E)
G) C) and D)

Question 11

You are told that a genome is about 10 Mb long, has 5,000 genes, and that 65% of its sequence is coding sequence. This genome most likely belongs to a(n)

Accepted Answer

A)   virus.
B)   bacterium.
C)   yeast.
D)   plant.
E)   animal.F) All of the above
G) A) and B)

Question 12

A study comparing the proteins that are produced in sperm cells to those of skin cells would be an example of

Accepted Answer

A)   comparative genomics.
B)   functional genomics.
C)   pharmacogenomics.
D)   metabolomics.
E)   proteomics.F) All of the above
G) A) and B)

Question 13

Which of the following statements about the human genome is false?

Accepted Answer

A)   Over 50 percent of the genome contains transposons.
B)   Almost every gene has introns.
C)   Genes are evenly distributed over the genome.
D)   About 2 percent of the genome codes for genes.
E)   Humans have about the same number of genes as fruit flies have.F) A) and B)
G) B) and C)

Question 14

The type of sequencing known as _______ relies on sophisticated computer algorithms to align numerous short DNA sequences without the use of a genetic map.

Accepted Answer

The answer of The type of sequencing known as _______...

Question 15

Which of the following statements about genomes is true?

Accepted Answer

A)   Most genes found in the genomes of complex multicellular organisms are not required for survival.
B)   As complexity increases from bacteria to yeast to invertebrate to vertebrate, gene number increases more than does the size of the genome.
C)   As complexity increases from bacteria to yeast to invertebrate to vertebrate, the proportion of the genome consisting of coding sequence increases.
D)   Both a and b
E)   Both b and cF) D) and E)
G) A) and B)

Question 16

Nonfunctional copies of genes, known as _______, arise when mutations knock out the function of a gene.

Accepted Answer

The answer of Nonfunctional copies of genes, known as _______,...

Question 17

The rRNA genes that encode for the various rRNAs are an example of _______ repetitive DNA.

Accepted Answer

The answer of The rRNA genes that encode for the...

Question 18

Commonly known as the thale grass, _______, a member of the mustard family, is a model organism for a variety of studies in plant biology.

Accepted Answer

Arabidopsi...

Question 19

Which of the following statements about transposable elements is true?

Accepted Answer

A)   Their insertion into genes can disrupt gene function.
B)   Their position can vary in different strains of bacteria.
C)   All are transposons.
D)   Both a and b
E)   Both b and cF) A) and D)
G) A) and C)

Question 20

Proteomics has been used to compare

Accepted Answer

A)   DNA sequences between closely related species.
B)   gene expression during embryonic development.
C)   protein sequences between closely related species.
D)   shotgun cloned sequences.
E)   prokaryotic genomes.F) A) and E)
G) B) and C)

Exam 17: Genomes

During the process of gene expression, RNA polymerase would most likely be found

Correct AnswerverifiedShow Answer

Which of the following is not a main type of transposon in the human genome?

Correct AnswerverifiedShow Answer

The type of sequencing known as _______ relies on sophisticated computer algorithms to align numerous short DNA sequences without the use of a genetic map.

Correct AnswerverifiedShow Answer

A study comparing the proteins that are produced in sperm cells to those of skin cells would be an example of

Correct AnswerverifiedShow Answer

The maximum length of DNA that can be sequenced at one time by means of the standard technology is about _______ bases.

Correct AnswerverifiedShow Answer

The coding region of a gene, also known as a(n) _______, can usually be recognized by the presence of a(n) _______ codon and a(n) _______ codon.

Correct Answerverifiedopen readi...View AnswerShow Answer

Which of the following statements about pseudogenes is true?

Correct AnswerverifiedShow Answer

In DNA sequencing, ddNTPs are added at much lower concentrations than are dNTPs. If ddNTPs were added at higher concentrations, what would be the most likely result?

Correct AnswerverifiedShow Answer

Nonfunctional copies of genes, known as _______, arise when mutations knock out the function of a gene.

Correct AnswerverifiedShow Answer

Which of the following statements about genomes is true?

Correct AnswerverifiedShow Answer

Gene inactivation studies have allowed us to

Correct AnswerverifiedShow Answer

The diagram below shows high-throughput sequencing. At which step does PCR take place?

Correct AnswerverifiedShow Answer

Proteomics has been used to compare

Correct AnswerverifiedShow Answer

Which of the following statements comparing the worm C. elegans and the fly D. melanogaster is true?

Correct AnswerverifiedShow Answer

A comparison of the genomes of yeast and bacteria shows that only yeast has many genes for

Correct AnswerverifiedShow Answer

Which of the following statements about the human genome is false?

Correct AnswerverifiedShow Answer

You are told that a genome is about 10 Mb long, has 5,000 genes, and that 65% of its sequence is coding sequence. This genome most likely belongs to a(n)

Correct AnswerverifiedShow Answer

Commonly known as the thale grass, _______, a member of the mustard family, is a model organism for a variety of studies in plant biology.

Correct AnswerverifiedArabidopsi...View AnswerShow Answer

The rRNA genes that encode for the various rRNAs are an example of _______ repetitive DNA.

Correct AnswerverifiedShow Answer

Which of the following statements about transposable elements is true?

Correct AnswerverifiedShow Answer

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The coding region of a gene, also known as a(n) ___, can usually be recognized by the presence of a(n) _ codon and a(n) _____ codon.

Correct Answer
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open readi...
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Arabidopsi...
View Answer

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