(a) Interpretation: The reason for the doubt in the reported amino acid substitution by a molecular geneticist needs to be explained. Concept introduction: A sequence of three DNA or RNA nucleotides is called a codon. The three- nucleotide sequence or codon corresponds to a specific amino acid, and these codons are interpreted by the tRNA. The tRNA also contains the anticodon which recognizes and interprets the codons on the mRNA. The tRNA binds to its corresponding codon on the ribosome and they decode the mRNA until the whole sequence is coded. The sequences can be mutated, and they can give rise to new proteins and genes.

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Chapter 4, Problem 47P

Interpretation Introduction

(a)

Interpretation:

The reason for the doubt in the reported amino acid substitution by a molecular geneticist needs to be explained.

Concept introduction:

A sequence of three DNA or RNA nucleotides is called a codon. The three-nucleotide sequence or codon corresponds to a specific amino acid, and these codons are interpreted by the tRNA. The tRNA also contains the anticodon which recognizes and interprets the codons on the mRNA. The tRNA binds to its corresponding codon on the ribosome and they decode the mRNA until the whole sequence is coded. The sequences can be mutated, and they can give rise to new proteins and genes.

Interpretation Introduction

(b)

Interpretation:

The amino acid sequence, more palatable to the molecular geneticist needs to be determined.

Concept introduction:

A sequence of three DNA or RNA nucleotides is called a Codon. The three-nucleotide sequence or codon corresponds to a specific amino acid, and these codons are interpreted by the tRNA. The tRNA also contains the anticodon which recognizes and interprets the codons on the mRNA. The tRNA binds to its corresponding codon on the ribosome and they decode the mRNA until the whole sequence is coded. The sequences can be mutated, and they can give rise to new proteins and genes.

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After adding a small amount of ATP labeled with radioactive phosphorus in the terminal position, [7-32P]ATP, to a yeast extract, a researcher finds about half of the 32P activity in P; within a few minutes, but the concentration of ATP remains unchanged. She then carries out the same experiment using ATP labeled with 32P in the central position, [ẞ-³2P]ATP, but the 32P does not appear in P; within such a short time. Which statements explain these results? Yeast cells reincorporate P; released from [ß-³2P]ATP into ATP more quickly than P¡ released from [y-³2P]ATP. Only the terminal (y) phosphorous atom acts as an electrophilic target for nucleophilic attack. The terminal (y) phosphoryl group undergoes a more rapid turnover than the central (B) phosphate group. Yeast cells maintain ATP levels by regulating the synthesis and breakdown of ATP. Correct Answer

Answer 2

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Chapter 4, Problem 47P

Interpretation Introduction

(a)

Interpretation:

The reason for the doubt in the reported amino acid substitution by a molecular geneticist needs to be explained.

Concept introduction:

A sequence of three DNA or RNA nucleotides is called a codon. The three-nucleotide sequence or codon corresponds to a specific amino acid, and these codons are interpreted by the tRNA. The tRNA also contains the anticodon which recognizes and interprets the codons on the mRNA. The tRNA binds to its corresponding codon on the ribosome and they decode the mRNA until the whole sequence is coded. The sequences can be mutated, and they can give rise to new proteins and genes.

Interpretation Introduction

(b)

Interpretation:

The amino acid sequence, more palatable to the molecular geneticist needs to be determined.

Concept introduction:

A sequence of three DNA or RNA nucleotides is called a Codon. The three-nucleotide sequence or codon corresponds to a specific amino acid, and these codons are interpreted by the tRNA. The tRNA also contains the anticodon which recognizes and interprets the codons on the mRNA. The tRNA binds to its corresponding codon on the ribosome and they decode the mRNA until the whole sequence is coded. The sequences can be mutated, and they can give rise to new proteins and genes.

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Answer 3

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Chapter 4, Problem 47P

Interpretation Introduction

(a)

Interpretation:

The reason for the doubt in the reported amino acid substitution by a molecular geneticist needs to be explained.

Concept introduction:

A sequence of three DNA or RNA nucleotides is called a codon. The three-nucleotide sequence or codon corresponds to a specific amino acid, and these codons are interpreted by the tRNA. The tRNA also contains the anticodon which recognizes and interprets the codons on the mRNA. The tRNA binds to its corresponding codon on the ribosome and they decode the mRNA until the whole sequence is coded. The sequences can be mutated, and they can give rise to new proteins and genes.

Interpretation Introduction

(b)

Interpretation:

The amino acid sequence, more palatable to the molecular geneticist needs to be determined.

Concept introduction:

A sequence of three DNA or RNA nucleotides is called a Codon. The three-nucleotide sequence or codon corresponds to a specific amino acid, and these codons are interpreted by the tRNA. The tRNA also contains the anticodon which recognizes and interprets the codons on the mRNA. The tRNA binds to its corresponding codon on the ribosome and they decode the mRNA until the whole sequence is coded. The sequences can be mutated, and they can give rise to new proteins and genes.

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Answer 4

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Chapter 4, Problem 47P

Interpretation Introduction

(a)

Interpretation:

The reason for the doubt in the reported amino acid substitution by a molecular geneticist needs to be explained.

Concept introduction:

A sequence of three DNA or RNA nucleotides is called a codon. The three-nucleotide sequence or codon corresponds to a specific amino acid, and these codons are interpreted by the tRNA. The tRNA also contains the anticodon which recognizes and interprets the codons on the mRNA. The tRNA binds to its corresponding codon on the ribosome and they decode the mRNA until the whole sequence is coded. The sequences can be mutated, and they can give rise to new proteins and genes.

Interpretation Introduction

(b)

Interpretation:

The amino acid sequence, more palatable to the molecular geneticist needs to be determined.

Concept introduction:

A sequence of three DNA or RNA nucleotides is called a Codon. The three-nucleotide sequence or codon corresponds to a specific amino acid, and these codons are interpreted by the tRNA. The tRNA also contains the anticodon which recognizes and interprets the codons on the mRNA. The tRNA binds to its corresponding codon on the ribosome and they decode the mRNA until the whole sequence is coded. The sequences can be mutated, and they can give rise to new proteins and genes.

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Answer 7

Chapter 4, Problem 47P

Interpretation Introduction

(a)

Interpretation:

The reason for the doubt in the reported amino acid substitution by a molecular geneticist needs to be explained.

Concept introduction:

A sequence of three DNA or RNA nucleotides is called a codon. The three-nucleotide sequence or codon corresponds to a specific amino acid, and these codons are interpreted by the tRNA. The tRNA also contains the anticodon which recognizes and interprets the codons on the mRNA. The tRNA binds to its corresponding codon on the ribosome and they decode the mRNA until the whole sequence is coded. The sequences can be mutated, and they can give rise to new proteins and genes.

Interpretation Introduction

(b)

Interpretation:

The amino acid sequence, more palatable to the molecular geneticist needs to be determined.

Concept introduction:

A sequence of three DNA or RNA nucleotides is called a Codon. The three-nucleotide sequence or codon corresponds to a specific amino acid, and these codons are interpreted by the tRNA. The tRNA also contains the anticodon which recognizes and interprets the codons on the mRNA. The tRNA binds to its corresponding codon on the ribosome and they decode the mRNA until the whole sequence is coded. The sequences can be mutated, and they can give rise to new proteins and genes.

Answer 8

Chapter 4, Problem 47P

Interpretation Introduction

(a)

Interpretation:

The reason for the doubt in the reported amino acid substitution by a molecular geneticist needs to be explained.

Concept introduction:

A sequence of three DNA or RNA nucleotides is called a codon. The three-nucleotide sequence or codon corresponds to a specific amino acid, and these codons are interpreted by the tRNA. The tRNA also contains the anticodon which recognizes and interprets the codons on the mRNA. The tRNA binds to its corresponding codon on the ribosome and they decode the mRNA until the whole sequence is coded. The sequences can be mutated, and they can give rise to new proteins and genes.

Answer 9

Chapter 4, Problem 47P

Interpretation Introduction

(a)

Interpretation:

The reason for the doubt in the reported amino acid substitution by a molecular geneticist needs to be explained.

Concept introduction:

A sequence of three DNA or RNA nucleotides is called a codon. The three-nucleotide sequence or codon corresponds to a specific amino acid, and these codons are interpreted by the tRNA. The tRNA also contains the anticodon which recognizes and interprets the codons on the mRNA. The tRNA binds to its corresponding codon on the ribosome and they decode the mRNA until the whole sequence is coded. The sequences can be mutated, and they can give rise to new proteins and genes.

Answer 10

Interpretation Introduction

(b)

Interpretation:

The amino acid sequence, more palatable to the molecular geneticist needs to be determined.

Concept introduction:

A sequence of three DNA or RNA nucleotides is called a Codon. The three-nucleotide sequence or codon corresponds to a specific amino acid, and these codons are interpreted by the tRNA. The tRNA also contains the anticodon which recognizes and interprets the codons on the mRNA. The tRNA binds to its corresponding codon on the ribosome and they decode the mRNA until the whole sequence is coded. The sequences can be mutated, and they can give rise to new proteins and genes.

Answer 11

Interpretation Introduction

(b)

Interpretation:

The amino acid sequence, more palatable to the molecular geneticist needs to be determined.

Concept introduction:

A sequence of three DNA or RNA nucleotides is called a Codon. The three-nucleotide sequence or codon corresponds to a specific amino acid, and these codons are interpreted by the tRNA. The tRNA also contains the anticodon which recognizes and interprets the codons on the mRNA. The tRNA binds to its corresponding codon on the ribosome and they decode the mRNA until the whole sequence is coded. The sequences can be mutated, and they can give rise to new proteins and genes.

Answer 12

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Answer 15

Ch. 4 - Prob. 1P Ch. 4 - Prob. 2P Ch. 4 - Prob. 3P Ch. 4 - Prob. 4P Ch. 4 - Prob. 5P Ch. 4 - Prob. 6P Ch. 4 - Prob. 7P Ch. 4 - Prob. 8P Ch. 4 - Prob. 9P Ch. 4 - Prob. 10P

Solution Summary: The author explains the reason for the doubt in the reported amino acid substitution by a molecular geneticist.

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