Join thousands of students who trust us to help them ace their exams!Watch the first video
Multiple Choice
How does the process of DNA replication impact the occurrence of mutations in an individual?
A
DNA replication decreases the likelihood of mutations by repairing damaged DNA.
B
DNA replication increases the likelihood of mutations due to errors in base pairing.
C
DNA replication has no effect on mutations as they occur independently of replication.
D
DNA replication completely prevents mutations by ensuring perfect copies of DNA.
Verified step by step guidance
1
Understand the process of DNA replication: DNA replication is the biological mechanism by which a cell duplicates its DNA, ensuring that each daughter cell receives an exact copy of the genetic material.
Recognize the role of enzymes: During DNA replication, enzymes like DNA polymerase play a crucial role in adding nucleotides to the growing DNA strand. However, these enzymes can occasionally make errors in base pairing.
Consider the impact of errors: Errors in base pairing during DNA replication can lead to mutations. These mutations occur when the wrong nucleotide is incorporated into the DNA strand, potentially altering the genetic code.
Evaluate the mechanisms for error correction: Cells have proofreading and repair mechanisms, such as mismatch repair, to correct errors made during DNA replication. Despite these mechanisms, some errors may escape correction, leading to mutations.
Conclude the relationship between replication and mutations: While DNA replication is essential for cell division and growth, it can increase the likelihood of mutations due to errors in base pairing, despite the presence of repair systems.