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Consider the following statements w.r.t ...

Consider the following statements w.r.t transcription and select the right choice
(i) The promoted is said to located towards the 5' - end of the coding strand.
(ii ) The promoted is an RAN sequence that provides a binding site for RNA polymerase.
(iii) The terminator is located towards the 3' end of the coding strand.
(iv) The strand that has polarity `3'rarr5'` acts as a template strand .

A

I & iii are incorrect

B

I & iii are correct

C

Only ii is incorrect

D

Only ii is correct

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the statements related to transcription, let's analyze each statement step by step. ### Step-by-Step Solution: 1. **Statement (i)**: "The promoter is said to be located towards the 5' end of the coding strand." - **Analysis**: This statement is correct. The promoter region is indeed located at the 5' end of the coding strand. It is the site where RNA polymerase binds to initiate transcription. 2. **Statement (ii)**: "The promoter is an RNA sequence that provides a binding site for RNA polymerase." - **Analysis**: This statement is incorrect. The promoter is a DNA sequence, not RNA. It provides the binding site for RNA polymerase to initiate transcription. 3. **Statement (iii)**: "The terminator is located towards the 3' end of the coding strand." - **Analysis**: This statement is correct. The terminator is indeed located at the 3' end of the coding strand. It signals the end of transcription. 4. **Statement (iv)**: "The strand that has polarity 3' to 5' acts as a template strand." - **Analysis**: This statement is correct. The template strand, which is complementary to the coding strand, runs in the 3' to 5' direction, allowing RNA polymerase to synthesize RNA in the 5' to 3' direction. ### Summary of Statements: - Statement (i): Correct - Statement (ii): Incorrect - Statement (iii): Correct - Statement (iv): Correct ### Conclusion: The correct statements are (i), (iii), and (iv). Therefore, the right choice based on the analysis is that only statement (ii) is incorrect. ### Final Answer: The correct choice is that only statement (ii) is incorrect. ---
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