MCQ
Point mutation arises due to change in
- ASingle base of $RNA$
- ✓Single base pair of $DNA$
- CEntire Functional Segment of $DNA$
- DNone of these

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| $Country$ | $Birth\, rate$ $/1000$ | $Death$ $/1000$ |
| $M$ | $15$ | $5$ |
| $N$ | $25$ | $10$ |
| $O$ | $35$ | $18$ |
| $P$ | $48$ | $41$ |