MCQ
About how long ago was the earth formed
- ✓$4.5$ billion years ago
- B$10$ billion years ago
- C$3.0$ billion years ago
- D$20$ billion years ago
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Match the Column - $I$ with $II$
| Column - $I$ | Column - $II$ |
| $(a)$ Pleiotropic gene | $(i)$ Both allele express equally |
| $(b)$ Co-dominance | $(ii)$ Change in nucleotide |
| $(c)$ Epistasis | $(iii)$ One gene shows multiple phenotypic expression |
| $(d)$ Mutation | $(iv)$ Rust disease |