31. Which of the following mutations will result in a greater decrease in the ef

Question

31. Which of the following mutations will result in a greater decrease in the efficiency of the attenuation? A) mutations that prevent the formation of the loop 1-2 B) mutations that prevent the formation of the loop 2-3 C) mutations that prevent the formation of the loop 3-4 D) mutations that alter the uracil in the 3 'end and the poli-U E) a and e 31. Which of the following mutations will result in a greater decrease in the efficiency of the attenuation? A) mutations that prevent the formation of the loop 1-2 B) mutations that prevent the formation of the loop 2-3 C) mutations that prevent the formation of the loop 3-4 D) mutations that alter the uracil in the 3 'end and the poli-U E) a and e 31. Which of the following mutations will result in a greater decrease in the efficiency of the attenuation? A) mutations that prevent the formation of the loop 1-2 B) mutations that prevent the formation of the loop 2-3 C) mutations that prevent the formation of the loop 3-4 D) mutations that alter the uracil in the 3 'end and the poli-U E) a and e

Explanation / Answer

Answer. Option D

Mutations in the poly-U sequence will alter the efficiency of Attenuation because basically this poly-U sequence helps in the termination by separating mRNA from DNA when the stem-loop forms. Mutations in this sequence will affect termination too.

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