MCQOPTIONS
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| 1. |
The pairs of bases in \[DNA\] are held together by [NCERT 1978; DPMT 1985; CBSE PMT 1992] |
| A. | Hydrogen bonds |
| B. | Ionic bonds |
| C. | Phosphate groups |
| D. | Deoxyribose groups |
| Answer» B. Ionic bonds | |