MCQ
When peacock eats snakes which eat insects thriving on green plants, the peacock is
- AA primary consumer
- BA primary decomposer
- CFinal decomposer
- ✓The apex of food pyramid
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Statement $I:$
DNA polymerases catalyse polymerisation only in one direction, that is $5^{\prime} \rightarrow 3^{\prime}$
Statement $II:$
During replication of $DNA$, on one strand the replication is continuous while on other strand it is discontinuous.
In the light of the above statements, choose the correct answer from the options given below :
$I$. To study the normal physiology and development
$II$. To study diseases
$III$. To obtain useful biological products
$IV$. To test the vaccine safety
$V$. To test the chemical safety
Which of the above statements are correct?