Multiple Choice
Which type of mutation occurs only in reproductive cells?
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15. Gene Expression
Mutations
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Which of the following is an example of a mutation?
A
A change in the DNA sequence of a gene
B
The transcription of DNA into RNA
C
The translation of RNA into protein
D
The process of DNA replication
Verified step by step guidance1
Understand the definition of a mutation: A mutation is a change in the nucleotide sequence of the DNA of an organism. This can occur due to errors during DNA replication or as a result of environmental factors.
Identify the options given in the problem: The options include a change in the DNA sequence of a gene, transcription of DNA into RNA, translation of RNA into protein, and the process of DNA replication.
Analyze each option: The transcription of DNA into RNA and the translation of RNA into protein are normal biological processes and do not involve changes in the DNA sequence. DNA replication is the process of copying DNA, which ideally does not change the sequence.
Focus on the option that involves a change in the DNA sequence: A change in the DNA sequence of a gene is the only option that describes a mutation, as it directly involves an alteration in the genetic material.
Conclude that the correct example of a mutation is a change in the DNA sequence of a gene, as it fits the definition of a mutation by altering the genetic code.
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