MCQ
Which of the following causes biomagnification?
- A$\mathrm{SO}_2$
- BMercury
- C$\text{DDT}$
- ✓Both $b\ \& \ c$
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Match the terms in column $I$ with their description in column $II$ and choose the correct option.
| Column $-I$ | Column $-II$ |
| $(A)$ Dominance | $(i)$ Many genesgovern a single character |
| $(B)$ Codominance | $(ii)$ In a heterozygousorganism only one allele expresses itself |
| $(C)$ Pleiotropy | $(iii)$ In a heterozygousorganism both alleles express themselves fully |
| $(D)$ Polygenic | $(iv)$ A single gene inheritanceinfluences many characters |