MCQ
$\text{DNA}$ or $\text{RNA}$ segment tagged with a radio$-$active molecule is called:
- AVector
- ✓Probe
- CClone
- DPlasmid
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Column- $I$ |
Column- $II$ |
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$A.$ $500$ million years ago |
$1.$ Sea weeds and few plants |
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$B.$ $350$ million years ago |
$2.$ Jawless fishes |
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$C.$ $320$ million years ago. |
$3.$ Inverbebrates |