MCQ
: Choose incorrect sentence for $RNA$.
- A$RNA$ is useful for protein synthesis.
- B$t-RNA$ brings amino acids and reads the genetic code.
- ✓$RNA$ contains two polynucleotide chain.
- DDuring translation $r-RNA$ act as catalyst.
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| Column – I | Column $- II$ |
| $(1)$ Study of disease | $(p)$ Transgenic mice |
| $(2)$ Biological products | $(q)$ Testing toxicity of drug |
| $(3)$ Vaccine safety | $(r)$ Rheumatoid arthritis |
| $(4)$ Chemical safety | $(s)\; \alpha - 1$ Antitrypsin |