Question 1

The codon GAU codes for which amino acid?

Accepted Answer

A)  CUA
B)  CTA
C)  aspartate
D)  leucine

Question 2

Following transcription,the

Accepted Answer

A)  strands of DNA bond back to each other.
B)  mRNA is digested.
C)  DNA molecule is broken down.
D)  ribosome is released from the tRNA molecule.

Question 3

In bacteria,the antibiotic tetracycline blocks the site where tRNA molecules enter the ribosome.The most likely reason that bacteria die from treatment with tetracycline is because the antibiotic

Accepted Answer

A)  inhibits the cell from producing the mRNA.
B)  causes the tRNA molecules to randomly arrange into proteins that do not function.
C)  causes tRNA rather than mRNA to be made into proteins.
D)  prevents the bacteria from assembling essential proteins.

Question 4

Use the following chart to determine the chain of amino acids that would be produced by the entire sequence UGUACGAUAGGCUAG.

Accepted Answer

A)  ACAUGCUAUAUCCCG
B)  ACATGCTATATCCCG
C)  cysteine-threonine-isoleucine-glycine
D)  cysteine-threonine-isoleucine-glycine-stop

Question 5

The genetic code is ________,which means that all cells use the same code.

Accepted Answer

The answer of The genetic code is ________,which means that...

Question 6

MATCHING
Identify if the following increase or decrease transcription or translation.
-RNA polymerase binds to the promoter more easily.

Accepted Answer

A)  Transcription is up-regulated
B)  Transcription is down-regulated
C)  Translation is up-regulated
D)  Translation is down-regulated

Question 7

Protein coding genes specify the production of ________ as their immediate product.

Accepted Answer

A)  rRNA
B)  tRNA
C)  DNA
D)  mRNA D

Question 8

Prokaryotes lack membrane-enclosed organelles and thus do not have nuclei.Therefore,

Accepted Answer

A)  prokaryotes are unable to undergo transcription and translation.
B)  prokaryotic cells do not need to undergo translation.
C)  prokaryotic cells do not need to undergo transcription.
D)  prokaryotic transcription and translation both take place in the cytoplasm.

Question 9

In bacteria,a particular gene codes for a protein that helps the bacteria break down and use lactose as a food source.If no lactose is present,

Accepted Answer

A)  the gene will be broken down so no enzyme is made.
B)  the gene will mutate to produce another,more useful,enzyme.
C)  the promoter for this gene will be blocked so RNA polymerase can't bind.
D)  the promoter for this gene will be enhanced so RNA polymerase binds more readily.

Question 10

MATCHING
Identify if the following increase or decrease transcription or translation.
-More ribosomes are produced.

Accepted Answer

A)  Transcription is up-regulated
B)  Transcription is down-regulated
C)  Translation is up-regulated
D)  Translation is down-regulated

Question 11

Bacteria do not have a nucleus,and therefore do not use RNA splicing after translation.The initial mRNA that is produced is translated directly.An experiment transforms a bacterial cell and a eukaryotic cell with an identical gene (of identical length).Explain how the proteins from each cell would differ.

Accepted Answer

RNA splicing removes introns f...

Question 12

Organisms can regulate both transcription and translation to control gene expression.What is one advantage and one disadvantage of regulating transcription rather than translation?

Accepted Answer

Producing mRNA requires energy.If gene e...

Question 13

Consider a build-at-home bookshelf that comes with instructions and various pieces of wood as an analogy for translation.In this analogy,what would best match the job of the ribosome?

Accepted Answer

A)  the instructions
B)  the person building the bookshelf
C)  the pieces of wood
D)  the bookshelf

Question 14

During transcription,

Accepted Answer

A)  the DNA strands replicate,producing four mRNA molecules.
B)  each strand in the DNA molecule directs the production of an mRNA molecule.
C)  a template strand of DNA directs the production of an mRNA molecule.
D)  a template strand of DNA directs the production of all of the tRNA molecules needed for producing the gene's protein product.

Question 15

DNA technology can be used with all organisms because they all

Accepted Answer

A)  contain antibodies.
B)  can contract the same diseases.
C)  share the same chemical DNA structure.
D)  contain the same genes.

Question 16

The importance of tRNA is that it

Accepted Answer

A)  carries a specific amino acid to the mRNA.
B)  reads the DNA molecule.
C)  contains codons that specify amino acids.
D)  is important in the construction of ribosomes.

Question 17

Which of the following codons codes for Proline?

Accepted Answer

A)  UCC
B)  CCU
C)  UUU
D)  CUU B

Question 18

Some viruses produce an enzyme called reverse transcriptase.Based on your understanding of gene expression,what should this enzyme do?

Accepted Answer

A)  It produces RNA from a DNA template.
B)  It produces DNA from an RNA template.
C)  It produces proteins from an RNA template.
D)  It produces RNA from a protein template.

Question 19

Gene regulation is the ability to

Accepted Answer

A)  cut out a certain region of DNA to save energy.
B)  increase or decrease protein synthesis from a given gene.
C)  change the sequence of a gene to produce a new protein.
D)  share genetic information between different organisms. B

Question 20

In bacteria,the antibiotic chloramphenicol prevents amino acids from bonding together.The most likely reason that bacteria die from treatment with chloramphenicol is because the antibiotic

Accepted Answer

A)  inhibits transcription.
B)  inhibits translation.
C)  causes the wrong bases to be added to the growing mRNA strand.
D)  causes the wrong amino acids to be bound to the tRNA strands.

Exam 9: How Genes Work

The codon GAU codes for which amino acid?

Correct Answer
verified

Following transcription,the

Correct Answer
verified

In bacteria,the antibiotic tetracycline blocks the site where tRNA molecules enter the ribosome.The most likely reason that bacteria die from treatment with tetracycline is because the antibiotic

Correct Answer
verified

Use the following chart to determine the chain of amino acids that would be produced by the entire sequence UGUACGAUAGGCUAG.

Correct Answer
verified

The genetic code is ________,which means that all cells use the same code.

Correct Answer
verified

MATCHING Identify if the following increase or decrease transcription or translation. -RNA polymerase binds to the promoter more easily.

Correct Answer
verified

Protein coding genes specify the production of ________ as their immediate product.

Correct Answer
verified
D

Prokaryotes lack membrane-enclosed organelles and thus do not have nuclei.Therefore,

Correct Answer
verified

In bacteria,a particular gene codes for a protein that helps the bacteria break down and use lactose as a food source.If no lactose is present,

Correct Answer
verified

MATCHING Identify if the following increase or decrease transcription or translation. -More ribosomes are produced.

Correct Answer
verified

Correct Answer
verified
RNA splicing removes introns f...
View Answer

Organisms can regulate both transcription and translation to control gene expression.What is one advantage and one disadvantage of regulating transcription rather than translation?

Correct Answer
verified
Producing mRNA requires energy.If gene e...
View Answer

Consider a build-at-home bookshelf that comes with instructions and various pieces of wood as an analogy for translation.In this analogy,what would best match the job of the ribosome?

Correct Answer
verified

During transcription,

Correct Answer
verified

DNA technology can be used with all organisms because they all

Correct Answer
verified

The importance of tRNA is that it

Correct Answer
verified

Which of the following codons codes for Proline?

Correct Answer
verified
B

Some viruses produce an enzyme called reverse transcriptase.Based on your understanding of gene expression,what should this enzyme do?

Correct Answer
verified

Gene regulation is the ability to

Correct Answer
verified
B

In bacteria,the antibiotic chloramphenicol prevents amino acids from bonding together.The most likely reason that bacteria die from treatment with chloramphenicol is because the antibiotic

Correct Answer
verified

Exam 9: How Genes Work

The codon GAU codes for which amino acid?

Correct AnswerverifiedShow Answer

Following transcription,the

Correct AnswerverifiedShow Answer

In bacteria,the antibiotic tetracycline blocks the site where tRNA molecules enter the ribosome.The most likely reason that bacteria die from treatment with tetracycline is because the antibiotic

Correct AnswerverifiedShow Answer

Use the following chart to determine the chain of amino acids that would be produced by the entire sequence UGUACGAUAGGCUAG.

Correct AnswerverifiedShow Answer

The genetic code is ________,which means that all cells use the same code.

Correct AnswerverifiedShow Answer

MATCHING Identify if the following increase or decrease transcription or translation. -RNA polymerase binds to the promoter more easily.

Correct AnswerverifiedShow Answer

Protein coding genes specify the production of ________ as their immediate product.

Correct AnswerverifiedD

Prokaryotes lack membrane-enclosed organelles and thus do not have nuclei.Therefore,

Correct AnswerverifiedShow Answer

In bacteria,a particular gene codes for a protein that helps the bacteria break down and use lactose as a food source.If no lactose is present,

Correct AnswerverifiedShow Answer

MATCHING Identify if the following increase or decrease transcription or translation. -More ribosomes are produced.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedRNA splicing removes introns f...View AnswerShow Answer

Organisms can regulate both transcription and translation to control gene expression.What is one advantage and one disadvantage of regulating transcription rather than translation?

Correct AnswerverifiedProducing mRNA requires energy.If gene e...View AnswerShow Answer

Consider a build-at-home bookshelf that comes with instructions and various pieces of wood as an analogy for translation.In this analogy,what would best match the job of the ribosome?

Correct AnswerverifiedShow Answer

During transcription,

Correct AnswerverifiedShow Answer

DNA technology can be used with all organisms because they all

Correct AnswerverifiedShow Answer

The importance of tRNA is that it

Correct AnswerverifiedShow Answer

Which of the following codons codes for Proline?

Correct AnswerverifiedB

Some viruses produce an enzyme called reverse transcriptase.Based on your understanding of gene expression,what should this enzyme do?

Correct AnswerverifiedShow Answer

Gene regulation is the ability to

Correct AnswerverifiedB

In bacteria,the antibiotic chloramphenicol prevents amino acids from bonding together.The most likely reason that bacteria die from treatment with chloramphenicol is because the antibiotic

Correct AnswerverifiedShow Answer

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D

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RNA splicing removes introns f...
View Answer

Correct Answer
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Producing mRNA requires energy.If gene e...
View Answer

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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B

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B

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