DNA segment is changed from TTGCCA to TAGCCA. What kind of mutation is this?

Question

DNA segment is changed from TTGCCA to TAGCCA. What kind of mutation is this?

Translocation

Insertion

Substitution

Deletion

Answer 1

The change from TTGCCA to TAGCCA involves the replacement of one nucleotide (the first T is changed to A). This type of mutation is known as a substitution mutation, as one nucleotide is substituted for another.

So, the correct answer is Substitution.