MCQ
DNA polymerase is needed for:
- AReplication of DNA
- BSynthesis of DNA
- CElongation of DNA
- DAll of the above
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$I.$ use of biofertilisers and biopesticides
$II.$ crop rotation
$III.$ locally developed pest resistant varieties
Choose the correct option
$(i)$ Every gene contains the information to express a particular trait.
$(ii)$ Gene responsible for $\beta$ - thalassemia is present on $21^{st}$ pair of autosomal chromosome.
$(iii)$ Mendel's approach of using mathematics to explain biological phenomena was totally new and unacceptable to many of the biologists of his time.