The ribonucleotide polymer (5')GTGATCAAGC(3') could only form a double-stranded structure with:
A) (5')CACTAGTTCG(3').
B) (5')CACUAGUUCG(3').
C) (5')CACUTTCGCCC(3').
D) (5')GCTTGATCAC(3').
E) (5')GCCTAGTTUG(3').

Question

Quizplus · Accepted Answer

The complementary strand to 5' GTGATCAAGC 3' is 3' CATAGTTGCG 5'. Therefore, the only option that could form a complementary strand with this sequence is D) (5') GCTTGATCAC (3'), which has the sequence 3' CGAACTAGTG 5'.

The Ribonucleotide Polymer (5')GTGATCAAGC(3') Could Only Form a Double-Stranded Structure