A frameshift mutation __________.

is caused by the insertion of three bases

is caused by the deletion of three bases

occurs when the normal sequence of codons is disrupted by the insertion or deletion of one or more nucleotides, provided that the number of bases added or removed is not a multiple of three

is always lethal

1 answer

A frameshift mutation occurs when the normal sequence of codons is disrupted by the insertion or deletion of one or more nucleotides, provided that the number of bases added or removed is not a multiple of three. This type of mutation alters the reading frame of the codons in the mRNA, potentially leading to significant changes in the resulting protein.