Which statement correctly describes mutations and their repairs?
A)DNA polymerase makes very few mistakes during DNA replication.
B)DNA polymerase can correct mistakes made during DNA replication.
C)Mutations only occur during DNA replication.
D)DNA polymerase can easily copy damaged DNA.
E)Repair enzymes can fix a mutation after the altered DNA strand has been replicated.

Question

Which statement correctly describes mutations and their repairs?​
A)​DNA polymerase makes very few mistakes during DNA replication.
B)​DNA polymerase can correct mistakes made during DNA replication.
C)​Mutations only occur during DNA replication.
D)​DNA polymerase can easily copy damaged DNA.
E)​Repair enzymes can fix a mutation after the altered DNA strand has been replicated.

Quizplus · Accepted Answer

DNA polymerase has a proofreading function that helps correct mistakes made during DNA replication. Mutations can also occur from external factors such as exposure to radiation or chemicals. In these cases, repair enzymes can fix the damaged DNA before replication occurs, or after replication if the mutation is missed during proofreading.

Which Statement Correctly Describes Mutations and Their Repairs?​

Which Statement Correctly Describes Mutations and Their Repairs?