Suppose that the string of A nucleotides following the inverted repeat in a rho-independent terminator was deleted but that the inverted repeat was left intact. How will this deletion affect termination? What will happen when RNA polymerase reached this region?

Question

Biology

Isla Osborn

8 July, 06:32

Suppose that the string of A nucleotides following the inverted repeat in a rho-independent terminator was deleted but that the inverted repeat was left intact. How will this deletion affect termination? What will happen when RNA polymerase reached this region?

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Answers (1)

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Alyvia Jefferson · Answer 1

Answer: is seen below

Explanation:

Termination will not take place if the strings of A nucleotides following an inverted repeat of rho - independent termination (which forms an hairpin structure) were deleted. Although, RNA polymerase may pause briefly at the hairpin, the presence of A - U base pairs is needed to destabilize the DNA - RNA interaction and to end transcription. If the string A nucleotides is not present, then transcription of RNA polymerase will continue.