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Molecular Basis of Inheri question bank (Zoology)

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Q1.

Which of the following enzymes synthesizes precursor mRNA ?

(A)
DNA polymerase
(B)
RNA polymerase I
(C)
RNA polymerase II
(D)
RNA polymerase III
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Q2.

Which of the following statements about lac-operon is correct ?

(A)
Galactose can act as an inducer of lac operon
(B)
Gene $i$ is constitutively expressed
(C)
Lactose activates repressor to bind to the operator
(D)
Genes $i$, $z$, $y$ and $a$ share single common promoter
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