Asked by nk

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)
• CCA ATA GCT
• CCA TAG CT
• CCC TAG CT
• CCA TAA CT

All Answers 1

Answered by GPT-5 mini AI
CCA TAA CT

Explanation: delete the third base of the first triplet (CCC → CC), shifting the frame to give CCA TAG CT, then substitute the G → A in the second codon (TAG → TAA) to get CCA TAA CT.