Asked by Nelly Kandie on Jul 19, 2024
Verified
Which statement best describes a DNA mutation?
A) DNA polymerase adds an incorrect base during replication.
B) DNA is damaged by UV irradiation.
C) A mistake in the DNA sequence is repaired during replication.
D) A permanent change occurs in the nucleotide sequence of DNA.
E) Proofreading during replication replaces a mismatched nucleotide.
DNA Mutation
A change in the nucleotide sequence of the DNA molecule, which can lead to variations in physical traits and health conditions.
Nucleotide Sequence
The precise order of nucleotides within a DNA or RNA molecule, which constitutes the genetic information of an organism.
- Acknowledge the critical role of DNA damage and the mechanisms for its repair.
Verified Answer
MC
Mackayla ChenaultJul 22, 2024
Final Answer :
D
Explanation :
A DNA mutation is a permanent change in the nucleotide sequence of DNA. This can occur from errors during replication, exposure to mutagenic agents, or spontaneous errors in DNA synthesis. The result is a change in the genetic code, which can lead to altered protein function and potentially harmful effects on an organism.
Learning Objectives
- Acknowledge the critical role of DNA damage and the mechanisms for its repair.