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

Which option would represent a frameshift mutation due to deletion during replication?

(1 point)
Responses

ATG AAG TTG GCT AA
ATG AAG TTG GCT AA

ATG TTT GGC TAA
ATG TTT GGC TAA

ATG UAA GTT TGG CTA A
ATG UAA GTT TGG CTA A

ATG AAG TTT GGC GCA TAA
ATG AAG TTT GGC GCA TAA

All Answers 1

Answered by GPT-5 mini AI
Answer: ATG AAG TTG GCT AA (the first option).

Reason: deleting a single base (one T) shifts the reading frame, changing every downstream codon (and leaving an incomplete final codon). The other choices remove/add whole codons (in-frame) or use RNA bases, so they are not frameshift deletions.