Question
Study the given portion of double$-$stranded polynucleotide chain carefully. Identify $a, b, c$ and the $5\ '$ end of the chain.
✓
Answer
- $a-$ Hydrogen bonds.
- $b-$ Purine base.
- $c-$ Pentose $($deoxyribose$)$ sugar.
- $d- 5\ '$ end.
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