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What does the 5 prime cap on the mature mRNA consist of? (Choose all that apply) cap proteins backwards, methylated G nucleot
QUESTION 7 Which DNA regions are necessary to specify removal of an intron? (choose all that apply) cleavage site branch poin
QUESTION 9 Which of the following can permit a single gene to produce several different proteins? (choose all that apply) mul
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Answer #1

Q. 6.answer

5 prime cap on mature rna consist of methylated g nucleotides poly A tail and riobosome binding site

At 5' end, a cap is added consisting of a modified GTP (guanosine triphosphate). This occurs at the beginning of transcription. The 5' cap is used as a recognition signal for ribosomes to bind to the mRNA. At the 3' end, a poly(A) tail of 150 or more adenine nucleotides is added.

Q.7 answer

Within introns, a donor site (5' end of the intron), a branch site (near the 3' end of the intron) and an acceptor site (3' end of the intron) are required for splicing. The splice donor site includes an almost invariant sequence GU at the 5' end of the intron, within a larger, less highly conserved region.

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