Select the correct option regarding the direction of RNA synthesis and the reading of the template DNA strand: - Biology MCQ Biology | ExamTest.live | ExamTest.live

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Select the correct option regarding the direction of RNA synthesis and the reading of the template DNA strand:

A $Direction of RNA synthesis: 5^{'} \to 3^{'}; Direction of reading template: 3^{'} \to 5^{'}$
B $Direction of RNA synthesis: 3^{'} \to 5^{'}; Direction of reading template: 5^{'} \to 3^{'}$
C $Direction of RNA synthesis: 5^{'} \to 3^{'}; Direction of reading template: 5^{'} \to 3^{'}$
D $Direction of RNA synthesis: 3^{'} \to 5^{'}; Direction of reading template: 3^{'} \to 5^{'}$

Solution & Step-by-step Explanation

RNA polymerase catalyzes the polymerization only in the 5^{'} \to 3^{'} direction. Therefore, it must read the DNA template strand in the opposite 3^{'} \to 5^{'} direction.

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Select the correct option regarding the direction of RNA synthesis and the reading of the template DNA strand:

A

Direction of RNA synthesis: 5^{'} \to 3^{'}; Direction of reading template: 3^{'} \to 5^{'}

B

Direction of RNA synthesis: 3^{'} \to 5^{'}; Direction of reading template: 5^{'} \to 3^{'}

C

Direction of RNA synthesis: 5^{'} \to 3^{'}; Direction of reading template: 5^{'} \to 3^{'}

D

Direction of RNA synthesis: 3^{'} \to 5^{'}; Direction of reading template: 3^{'} \to 5^{'}

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