The promoter site and the terminator sit...

The promoter site and the terminator site for transcription are located at:

3' (downstream) end and 5' (upstream) end, respectively of the transcription unit

5' (upstream) end and 3' (downstream ) end, respectively of the transcription unit

the 5' (upstream) end

the 3' (downstream) end

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Go through the following statements (i) 2'-OH group present at every nucleotide in RNA makes RNA labile and easily degradable. (ii) The transcription and translation can be coupled in bacteria (iii) the promoter is located towards the 5'-end while terminator is located towards the 3'end of the template strand. (iv). In lac operon, the z gene codes for betagalactosidase, y gene codes for permease while i gene codes for the inducer. Which of these are correct statement:

What is a terminator? What is its significance in transcription?

a) Construct a complete transcription unit with promoter and terminator on the basis of hypothetical template strand given below (b) Write the RNA strand transcribed from the above transcription unit along with its polarity

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What is a promoter in a transcription unit? Where is it located in DNA with reference to the structural gene?

(a) Draw a schematic representation of the structure of a transcription unit and show the following in it : (i) Direction in which transcription occurs (ii) Polarity of the two strands involved (iii) Template strand (iv) Terminator gene. (b) Mention the function of promoter gene is transcription.

Draw a schematic representation of the structure of a transcription unit and show the following in it (i) Direction in which the transcription occurs (ii) Polarity of the two strands involved (iii) Template strand (iv) Terminator gene

Mention the function of promoter gene in transcription.

The preferred sites of protonation in the following compounds are:

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