Question

This is the original strand of DNA: ATG AAG TTT GGC TAA

Which option would represent a frameshift mutation caused by a deletion during replication?

(1 point)
Responses

ATG AAG TTG GCT AA
A T G A A G T T G G C T A A

ATG AAG AAG TTT GGC TAA
A T G A A G A A G T T T G G C T A A

ATG AAG TTT GGC CGC ATA A
A T G A A G T T T G G C C G C A T A A

ATG AAG TTT GGC

Answer 1

A frameshift mutation occurs when the number of nucleotides inserted or deleted from the DNA sequence is not a multiple of three, leading to a shift in the reading frame of the DNA during translation.

From the options provided, we are looking for a deletion that results in a frameshift.

Let’s analyze the options:

1. **ATG AAG TTG GCT AA**: This sequence has deleted one nucleotide ('T'), changing the reading frame.
2. **A T G A A G T T G G C T A A**: This option separates the original strand into single nucleotides and does not represent a deletion.
3. **ATG AAG AAG TTT GGC TAA**: This sequence introduces an extra 'A', which is not a deletion.
4. **ATG AAG TTT GGC CGC ATA A**: This sequence includes an extra 'C' and 'A,' which is also not a deletion.

The correct option that represents a frameshift mutation caused by a deletion is:

**ATG AAG TTG GCT AA**