MCQ
$\text{DNA}$ is composed of repeating units of:
- ARibonucleosides.
- BDeoxyribonucleosides.
- CRibonucleotides.
- ✓Deoxyribonucleotides.
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$1.$ It is character of non living
$2.$ It is character of living organism
$3.$ It could not be physical, chemical or biological