Question
How and why is the bacterium Thermus aquaticus employed in recombinant DNA technology? Explain.

Answer

Bacterium is a source of enzyme Taq polymerase,Which is isolated from bacterium Thermus aquaticus, and is used to amplify DNA in vitro (by PCR),
It remains active even under high temperature at which DNA denatures.

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i. Construct a complete transcription unit with promotor and terminator on the basis of the hypothetical template strand given below.
Image
ii. Write the RNA strand transcribed from the above transcription unit along with its polarity.