| ras | retrovirus-associated DNA sequence |
|---|---|
| recon | the smallest unit of DNA capable of recombination [recombination + Gr. on quantum] |
| ss(c)DNA | single-stranded circular deoxyribonucleic acid |
| ssDNA | single-stranded DNA |
| Z-DNA | zig-zag (left-handed helical) deoxyribonucleic acid |