Question 1

Put the following steps in the process of translation in chronological order.
-mRNA binds to a ribosome.

Accepted Answer

A)  first
B)  second
C)  third
D)  fourth
E)  fifth

Question 2

An mRNA molecule that is 99 bases long will create a protein composed of

Accepted Answer

A)   33 amino acids.
B)   99 amino acids.
C)   33 tRNA molecules.
D)   99 tRNA molecules.

Question 3

Bacteria and humans use the same DNA components,and both kinds of cells also perform transcription and translation.Which of the following choices is a potentially significant outcome of this shared mechanism?

Accepted Answer

A)   Bacteria are able to transcribe and translate human DNA, and thus they potentially could produce human proteins.
B)   Bacteria are able to transcribe and translate human DNA; thus, they could evolve into humans.
C)   Bacterial and human proteins are identical in amino acid sequence because the mechanism for producing them is the same.
D)   Bacterial and human DNA are identical in sequence because the method for producing them is the same.

Question 4

Translate the following DNA sequence into a sequence of amino acids: TACTAAGGA.

Accepted Answer

The mRNA sequence produced fro...

Question 5

A mutation in the promoter region of a specific gene prevents RNA polymerase from binding.How would this mutation affect the function of this gene?

Accepted Answer

If RNA polymerase is unable to bind to t...

Question 6

The process of using an RNA template to make proteins is called ________.

Accepted Answer

The answer of The process of using an RNA template...

Question 7

Match the steps of transcription and translation to the location they take place within a eukaryotic cell.
-RNA splicing

Accepted Answer

A)  nucleus
B)  cytoplasm

Question 8

If a molecule of mRNA is a sentence,its bases are the letters and the codons are the ________.

Accepted Answer

The answer of If a molecule of mRNA is a...

Question 9

The function of genes is to control the production of

Accepted Answer

A)   enzymes.
B)   structural proteins.
C)   all proteins.
D)   amino acids.

Question 10

One concern with biopharming is that genes used to produce desired proteins could "escape" a laboratory setting and spread to food crops.What does it mean for a gene to "escape?" How would food crops be affected?

Accepted Answer

Food crops could incorporate a gene inse...

Question 11

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

Accepted Answer

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

Question 12

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 13

Explain how different cells in a human body,such as liver cells and skin cells,house the same genetic material but have different functions.

Accepted Answer

Although all cells in an individual cont...

Question 14

Explain what is meant by "redundancy" in the genetic code.

Accepted Answer

There are 64 codons,61 that specify an a...

Question 15

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 16

Since 1900,at least ________ people worldwide have died as a result of an H1N1 influenza infection.

Accepted Answer

A)   50,000,000
B)   50,285,000
C)   650,000
D)   52,535,000

Question 17

A silent mutation is a mutation where a DNA nucleotide has changed,but the resulting protein is identical to the protein produced before the mutation.Explain why such a mutation is possible.

Accepted Answer

The genetic code is redundant.This means...

Question 18

Match the descriptions to the molecules of transcription and translation.
-important part of ribosomes

Accepted Answer

A)  mRNA
B)  tRNA
C)  RNA polymerase
D)  rRNA
E)  amino acidsF) DNA

Question 19

Identify if the following situations represent an increase or decrease in transcription or translation.
-Fewer RNA polymerase enzymes 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 20

The expression of most genes is regulated by

Accepted Answer

A)   internal signals only.
B)   external signals only.
C)   both internal and external signals.
D)   neither internal nor external signals.

Exam 10: How Genes Work

Explain how different cells in a human body,such as liver cells and skin cells,house the same genetic material but have different functions.

Correct AnswerverifiedAlthough all cells in an individual cont...View AnswerShow Answer

Bacteria and humans use the same DNA components,and both kinds of cells also perform transcription and translation.Which of the following choices is a potentially significant outcome of this shared mechanism?

Correct AnswerverifiedShow Answer

A silent mutation is a mutation where a DNA nucleotide has changed,but the resulting protein is identical to the protein produced before the mutation.Explain why such a mutation is possible.

Correct AnswerverifiedThe genetic code is redundant.This means...View AnswerShow Answer

Translate the following DNA sequence into a sequence of amino acids: TACTAAGGA.

Correct AnswerverifiedThe mRNA sequence produced fro...View AnswerShow Answer

Match the steps of transcription and translation to the location they take place within a eukaryotic cell. -RNA splicing

Correct AnswerverifiedShow Answer

Put the following steps in the process of translation in chronological order. -mRNA binds to a ribosome.

Correct AnswerverifiedShow Answer

Match the descriptions to the molecules of transcription and translation. -important part of ribosomes

Correct AnswerverifiedShow Answer

Identify if the following situations represent an increase or decrease in transcription or translation. -Fewer RNA polymerase enzymes are produced.

Correct AnswerverifiedShow Answer

The function of genes is to control the production of

Correct AnswerverifiedShow Answer

Since 1900,at least ________ people worldwide have died as a result of an H1N1 influenza infection.

Correct AnswerverifiedShow Answer

The importance of tRNA is that it

Correct AnswerverifiedShow Answer

Explain what is meant by "redundancy" in the genetic code.

Correct AnswerverifiedThere are 64 codons,61 that specify an a...View AnswerShow Answer

The expression of most genes is regulated by

Correct AnswerverifiedShow Answer

Following transcription,the

Correct AnswerverifiedShow Answer

An mRNA molecule that is 99 bases long will create a protein composed of

Correct AnswerverifiedShow Answer

The process of using an RNA template to make proteins is called ________.

Correct AnswerverifiedShow Answer

If a molecule of mRNA is a sentence,its bases are the letters and the codons are the ________.

Correct AnswerverifiedShow Answer

A mutation in the promoter region of a specific gene prevents RNA polymerase from binding.How would this mutation affect the function of this gene?

Correct AnswerverifiedIf RNA polymerase is unable to bind to t...View AnswerShow Answer

One concern with biopharming is that genes used to produce desired proteins could "escape" a laboratory setting and spread to food crops.What does it mean for a gene to "escape?" How would food crops be affected?

Correct AnswerverifiedFood crops could incorporate a gene inse...View AnswerShow Answer

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

Correct AnswerverifiedShow Answer

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Although all cells in an individual cont...
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The genetic code is redundant.This means...
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The mRNA sequence produced fro...
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There are 64 codons,61 that specify an a...
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Correct Answer
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If RNA polymerase is unable to bind to t...
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Food crops could incorporate a gene inse...
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Correct Answer
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