Which of the following is a function of the 5′-methylguanosine cap?
Which of the following is a function of the 5′-methylguanosine cap?
1) It prevents the 5′ end of the mRNA from being digested by exonucleases.
2) It aids in transport of the mRNA out of the nucleus
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Order Paper Now3) It plays an important role in the initiation of mRNA translation.
4) It prevents the 5′ end of the mRNA from being digested by endonucleases.
A) 1 B) 2 C) 3 D) 4 E) 1, 2 and 3
. During RNA synthesis, about how many RNA nucleotides stay attached to DNA forming a DNA-RNA hybrid just behind the site where the polymerase is operating?
A) about 45
B) about 2
C) about 9
D) about 150
E) about 73