Exam 22: Nucleic Acids and Protein Synthesis

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During replication, the two strands of DNA separate and each serves as a template for a new strand. Thus, the original DNA molecule forms two DNA molecules, each of which contains one strand from the parent DNA and one new strand.

(True/False)

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Question 61

Nucleic acids are formed by joining the 3'-OH group of one nucleotide with the 5'-phosphate of a second nucleotide in a phosphodiester linkage.

(True/False)

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Question 62

The "cartoon" shown below is an example of an rRNA cloverleaf.

(True/False)

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Question 63

The point at which unwinding occurs in DNA is called the _____.

(Short Answer)

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Question 64

Transcription forms a messenger RNA molecule with a sequence that is identical to the DNA template strand from which it is prepared.

(True/False)

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Question 65

A DNA sequence segment is initially AAA ATG TGA CCC. Which mutation would have the least effect on the resultant protein synthesized?

(Multiple Choice)

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Question 66

Hydrogen bonding plays an important role in all but one of the items below. Which one does not involve hydrogen bonding?

(Multiple Choice)

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Question 67

The strand of DNA used for RNA synthesis is called the information strand.

(True/False)

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Question 68

A nucleoside is formed by joining the anomeric carbon of the monosaccharide with a nitrogen atom of the base.

(True/False)

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Question 69

What is the complementary strand for the DNA strand 5'-AAGGTAGC-3'?

(Multiple Choice)

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Question 70

Nucleosides are formed by adding a phosphate group to the 5'-OH of a nucleotide.

(True/False)

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Question 71

Which codon does not code for alanine?

(Multiple Choice)

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Question 72

What is the abbreviation of the polynucleotide shown?

(Multiple Choice)

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Question 73

All mutations result in a change in the amino acid sequence coded for by the DNA molecule.

(True/False)

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Question 74

If 22% of the nucleotides in a sample of DNA contain the base adenine (A), then 22 % of the nucleotides in a sample of DNA contain the base thymine (T).

(True/False)

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Question 75

What is the name of the nucleoside shown?

(Multiple Choice)

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Question 76

The structure shown is a segment of an RNA strand.

(True/False)

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Question 77

How many different mRNA sequences code for the dipeptide Leu-Ile?

(Multiple Choice)

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Question 78

What step in the synthesis of proteins involves the genetic message contained in mRNA specifying the specific amino acid sequence of a protein?

(Multiple Choice)

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Question 79

Which type of mutation occurs when a DNA sequence changes from GGA TCA CCG GAA…. to GGA TCC CGG….?

(Multiple Choice)

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Question 80

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Exam 22: Nucleic Acids and Protein Synthesis

During replication, the two strands of DNA separate and each serves as a template for a new strand. Thus, the original DNA molecule forms two DNA molecules, each of which contains one strand from the parent DNA and one new strand.

Nucleic acids are formed by joining the 3'-OH group of one nucleotide with the 5'-phosphate of a second nucleotide in a phosphodiester linkage.

The "cartoon" shown below is an example of an rRNA cloverleaf.

The point at which unwinding occurs in DNA is called the _____.

Transcription forms a messenger RNA molecule with a sequence that is identical to the DNA template strand from which it is prepared.

A DNA sequence segment is initially AAA ATG TGA CCC. Which mutation would have the least effect on the resultant protein synthesized?

Hydrogen bonding plays an important role in all but one of the items below. Which one does not involve hydrogen bonding?

The strand of DNA used for RNA synthesis is called the information strand.

A nucleoside is formed by joining the anomeric carbon of the monosaccharide with a nitrogen atom of the base.

What is the complementary strand for the DNA strand 5'-AAGGTAGC-3'?

Nucleosides are formed by adding a phosphate group to the 5'-OH of a nucleotide.

Which codon does not code for alanine?

What is the abbreviation of the polynucleotide shown?

All mutations result in a change in the amino acid sequence coded for by the DNA molecule.

If 22% of the nucleotides in a sample of DNA contain the base adenine (A), then 22 % of the nucleotides in a sample of DNA contain the base thymine (T).

What is the name of the nucleoside shown?

The structure shown is a segment of an RNA strand.

How many different mRNA sequences code for the dipeptide Leu-Ile?

What step in the synthesis of proteins involves the genetic message contained in mRNA specifying the specific amino acid sequence of a protein?

Which type of mutation occurs when a DNA sequence changes from GGA TCA CCG GAA…. to GGA TCC CGG….?

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