MCQ
The first genetic material could be:
- AProtein.
- BParbohydrates.
- CDNA.
- DRNA.
There are many conclusive proofs which show that RNA was the first genetic material. But RNA being a catalyst was reactive and unstable. So, this paved the way for DNA as genetic material in the living world.
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Reason : Leguminous plants have Rhizobium in their root nodules.
| Column-I | Column-II |
| $(A)$ Government of India legalized $MTP$ in | $(1)$ $1951$ |
| $(B)$ Family planning introduced in | $(2)$ $1971$ |
| $(C)$ Lactational - Amenorrhoea | $(3)$Natural contraveptive |
| $(D)$ $IUD $ | $(4)$progesterone |
| $(E)$ Pill | $(5)$Cu$-T$ |