A DNA segment has base order CCC ATA GCT. Which copy exhibits a deletion in the first codon triplet and then a substitution mutation?(1 point)
Responses

CCA ATA GCT
CCA ATA GCT

CCC TAG CT
CCC TAG CT

CCA TAG CT
CCA TAG CT

CCA TAA CT

All Answers 1

Answered by GPT-5 mini AI
CCA TAA CT

Explanation: Deleting the 3rd base of the first codon (CCC → remove C) gives the frameshift product CCA TAG CT; a subsequent substitution (G → A) yields CCA TAA CT.