2. Errors sometimes happen during DNA replication. If a DNA nucleotide that contains guanine is accidently substituted for a DNA nucleotide that contains thymine, which of
the following will always happen because of the error in DNA replication?

the DNA polymerase enzymes will come in and fix the mistakes

Explanation:

The DNA can make two differnet erros a slicent mution or a mution that happenes to make an effect on the body. but before all that the DNA polymerase enzymes come in and fix most of the incorrectly inserted nucleotide

yes, because even though a theory has a  lot of evidence to support it, it is not always true