- That end of any DNA strand that has a terminal phosphate group.
5′ (comparative more 5′, superlative most 5′)
- (informal) Relatively close to the 5′ end of a strand of DNA.
- 1992, James D. Watson et al., Recombinant DNA, second edition, Scientific American Books, ISBN 0716722828, page 147:
- A CG pair is often designated CpG to signify that the two nucleotides are contiguous in DNA and that the C is 5′ to the G.