MCQ
There are $64$ types of codons in genetic code dictionary because
- AThere are $64$ types of $tRNA's$ found in cell
- BThere are $44$ meaningless and $20$ codons for amino acids
- CThere are $64$ amino acids for coding
- ✓Genetic code is triplet
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| Column $-I$ | Column $-II$ |
| $(A)$ Physical barriers | $(1)$ Interferon |
| $(B)$ Physiological barriers | $(2)$ Leukocytes |
| $(C)$ Cellular barriers | $(3)$ Tears |
| $(D)$ Cytokinin barriers | $(4)$ skin |
$A$ $B$ $C$ $D$