Question 1

Place the following steps for the cloning of a gene in order: Place the following steps for the cloning of a gene in order:
1) DNA ligase seals foreign DNA into a plasmid.
2) A restriction enzyme is used to cleave DNA.
3) The bacterium makes a product.
4) Some of the bacterial cells take up a recombinant plasmid.
5) The plasmid replicates on its own.

Accepted Answer

A)  2,1,4,5,3
B)  1,2,3,4,5
C)  3,1,2,4,5
D)  5,1,4,3,2
E)  1,3,2,4,5F) A) and D)
G) B) and D) A

Question 2

How many stop codons are there in the genetic code?

Accepted Answer

A)   one
B)   two
C)   three
D)   four
E)   fiveF) B) and D)
G) A) and B)

Question 3

The sugar in DNA is deoxyribose while the sugar in RNA is ribose.

Accepted Answer

A) True 
 B)False

Question 4

In what way are DNA and RNA similar?

Accepted Answer

A)  Both contain C,A,and G.
B)  Both contain deoxyribose.
C)  Both contain U,C,and G.
D)  Both are single stranded.
E)  Both form a double helix.F) None of the above
G) B) and E) A

Question 5

Which structure contains the anticodon?

Accepted Answer

A)   the mRNA
B)   the large ribosomal subunit
C)   the small ribosomal subunit
D)   the tRNA
E)   the rRNAF) None of the above
G) A) and D)

Question 6

How many codons are there for leucine?

Accepted Answer

A)   two
B)   three
C)   four
D)   five
E)   sixF) A) and B)
G) B) and C)

Question 7

Which of the following is not a desirable trait commonly genetically engineered into plant?

Accepted Answer

A)   disease resistant
B)   salt sensitive
C)   improved yield
D)   modified wood pulp
E)   drought tolerantF) D) and E)
G) A) and B)

Question 8

Organisms that have had a foreign gene inserted into them are called analytical products.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following occurs during initiation of translation?

Accepted Answer

A)   The ribosome moves down one codon so that the A site is available to receive an incoming tRNA.
B)   The mRNA binds to the smaller of the two ribosomal subunits.
C)   The polypeptide lengthens one amino acid at a time.
D)   The ribosome dissociates into its two subunits and falls off the mRNA.
E)   One of the three stop codons is reached.F) B) and E)
G) B) and D)

Question 10

Ex vivo gene therapy has been used to treat which of the following diseases?

Accepted Answer

A)   SCID
B)   cardiovascular disease
C)   Huntington disease
D)   endocrine disorder
E)   all of theseF) All of the above
G) C) and E)

Question 11

Which of the following statements about PCR is not true?

Accepted Answer

A)   PCR stands for "polymerizing copies of RNA."
B)   PCR can create millions of copies of a segment of DNA in a test tube.
C)   PCR uses DNA polymerase.
D)   The amount of DNA doubles with each replication cycle.
E)   The target is repeatedly replicated.F) B) and D)
G) B) and E)

Question 12

What enzyme is responsible for transcription (formation of mRNA) ?

Accepted Answer

A)   helicase
B)   DNA polymerase
C)   RNA polymerase
D)   ligase
E)   proteaseF) B) and C)
G) All of the above

Question 13

Researchers found three genes on chromosome 22 in chimpanzees that,when compared to our human genes,have given us insight into our evolution.What were those three genes?

Accepted Answer

A)   genes for speech development, hearing, and smell
B)   genes for chest size, cranial size, and leg length
C)   genes for taste, opposable thumbs, and bipedalism
D)   genes for speech development, opposable thumbs, and leg length
E)   genes for food preference, bipedalism, and cranial sizeF) B) and C)
G) A) and E)

Question 14

Which of the following is not a type of small RNA?

Accepted Answer

A)   snoRNAs
B)   tRNA
C)   snRNAs
D)   miRNAs
E)   siRNAsF) B) and C)
G) A) and D) B

Question 15

All of the RNAs

Accepted Answer

A)   can be found in the ribosomes.
B)   are translated into proteins.
C)   are transcribed from DNA.
D)   function within the nucleus.
E)   interact with amino acids.F) D) and E)
G) A) and B)

Question 16

Which of the following is not involved in gene cloning?

Accepted Answer

A)   host cell
B)   vector
C)   restriction enzyme
D)   dyes attached to nucleotides
E)   "sticky" endsF) B) and E)
G) None of the above

Question 17

When the sequence CGCAAUGCAAGGA is translated,the corresponding protein will be arginine-asparagine- alanine-arginine.

Accepted Answer

A) True 
 B)False

Question 18

Which of the following is not true about transcription factors?

Accepted Answer

A)   Transcription factors are DNA-binding proteins.
B)   Transcription factors are considered external cell regulators.
C)   There are many different types of transcription factors.
D)   Specialization of cells is determined/influenced by which transcription factors are active in the cell.
E)   Genes code for transcription factors.F) B) and E)
G) A) and B)

Question 19

Both DNA and RNA are

Accepted Answer

A)   found in the cytosol.
B)   transcribed.
C)   translated.
D)   found in the nucleus.
E)   considered the genetic material of the cell.F) A) and D)
G) A) and C)

Question 20

One of the disadvantages of PCR is that it requires large amounts of starting material.

Accepted Answer

A) True 
 B)False

Exam 22: Dna Biology and Technology

Correct Answer
verified
A

How many stop codons are there in the genetic code?

Correct Answer
verified

The sugar in DNA is deoxyribose while the sugar in RNA is ribose.

Correct Answer
verified

In what way are DNA and RNA similar?

Correct Answer
verified
A

Which structure contains the anticodon?

Correct Answer
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How many codons are there for leucine?

Correct Answer
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Which of the following is not a desirable trait commonly genetically engineered into plant?

Correct Answer
verified

Organisms that have had a foreign gene inserted into them are called analytical products.

Correct Answer
verified

Which of the following occurs during initiation of translation?

Correct Answer
verified

Ex vivo gene therapy has been used to treat which of the following diseases?

Correct Answer
verified

Which of the following statements about PCR is not true?

Correct Answer
verified

What enzyme is responsible for transcription (formation of mRNA) ?

Correct Answer
verified

Researchers found three genes on chromosome 22 in chimpanzees that,when compared to our human genes,have given us insight into our evolution.What were those three genes?

Correct Answer
verified

Which of the following is not a type of small RNA?

Correct Answer
verified
B

All of the RNAs

Correct Answer
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Which of the following is not involved in gene cloning?

Correct Answer
verified

When the sequence CGCAAUGCAAGGA is translated,the corresponding protein will be arginine-asparagine- alanine-arginine.

Correct Answer
verified

Which of the following is not true about transcription factors?

Correct Answer
verified

Both DNA and RNA are

Correct Answer
verified

One of the disadvantages of PCR is that it requires large amounts of starting material.

Correct Answer
verified

Exam 22: Dna Biology and Technology

Correct AnswerverifiedA

How many stop codons are there in the genetic code?

Correct AnswerverifiedShow Answer

The sugar in DNA is deoxyribose while the sugar in RNA is ribose.

Correct AnswerverifiedShow Answer

In what way are DNA and RNA similar?

Correct AnswerverifiedA

Which structure contains the anticodon?

Correct AnswerverifiedShow Answer

How many codons are there for leucine?

Correct AnswerverifiedShow Answer

Which of the following is not a desirable trait commonly genetically engineered into plant?

Correct AnswerverifiedShow Answer

Organisms that have had a foreign gene inserted into them are called analytical products.

Correct AnswerverifiedShow Answer

Which of the following occurs during initiation of translation?

Correct AnswerverifiedShow Answer

Ex vivo gene therapy has been used to treat which of the following diseases?

Correct AnswerverifiedShow Answer

Which of the following statements about PCR is not true?

Correct AnswerverifiedShow Answer

What enzyme is responsible for transcription (formation of mRNA) ?

Correct AnswerverifiedShow Answer

Researchers found three genes on chromosome 22 in chimpanzees that,when compared to our human genes,have given us insight into our evolution.What were those three genes?

Correct AnswerverifiedShow Answer

Which of the following is not a type of small RNA?

Correct AnswerverifiedB

All of the RNAs

Correct AnswerverifiedShow Answer

Which of the following is not involved in gene cloning?

Correct AnswerverifiedShow Answer

When the sequence CGCAAUGCAAGGA is translated,the corresponding protein will be arginine-asparagine- alanine-arginine.

Correct AnswerverifiedShow Answer

Which of the following is not true about transcription factors?

Correct AnswerverifiedShow Answer

Both DNA and RNA are

Correct AnswerverifiedShow Answer

One of the disadvantages of PCR is that it requires large amounts of starting material.

Correct AnswerverifiedShow Answer

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A

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A

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B

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