MCQ
Mycorrhiza does not help the host plant in:
- AEnhancing its phosphorus uptake capacity.
- BIncreasing its tolerance to drought.
- CEnhancing its resistance to root pathogens.
- DIncreasing its resistance to insects.
Mycorrhiza help the host plant in enhancing its phosphorus uptake capacity, increasing its tolerance to drought and enhancing its resistance to root pathogens.
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| 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 |