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| Column-$I$ | Column-$II$ |
|---|---|
| $(i)$ વાયરોઇડ (Viroid) | $(a)$ રામચંદ્રન |
| $(ii)$ કોષ (Cell) | $(b)$ લ્યુવેનહોક |
| $(iii)$ વાયરસ (Virus) | $(c)$ ટી. ઓ. ડાઇનર |
| $(iv)$ કોલેજનનું ત્રિ-કુંતલમય બંધારણ | $(d)$ ઇવાનોવસ્કી |
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