What is the mechanism for addition of a guanosine to create the 5' methyl cap of a MRNA? O The 5'-OH end of the nascent mRNA performs a nucleophilic attack on the gamma phosphate of GTP O The gamma phosphate is removed from the 3' end of the nascent MRNA and then the beta-phosphate attacks the phosphorus atom of the alpha- phosphate of GTP O The gamma phosphate is removed from the 5' end of the nascent MRNA and then the -OH group from the beta-phosphate attacks the phosphorus atom of the alpha- phosphate of GTP O The 5'-OH end of the beta phosphate present on nascent mRNA performs a nucleophilic attack on the alpha-phosphate of GTP
What is the mechanism for addition of a guanosine to create the 5' methyl cap of a MRNA? O The 5'-OH end of the nascent mRNA performs a nucleophilic attack on the gamma phosphate of GTP O The gamma phosphate is removed from the 3' end of the nascent MRNA and then the beta-phosphate attacks the phosphorus atom of the alpha- phosphate of GTP O The gamma phosphate is removed from the 5' end of the nascent MRNA and then the -OH group from the beta-phosphate attacks the phosphorus atom of the alpha- phosphate of GTP O The 5'-OH end of the beta phosphate present on nascent mRNA performs a nucleophilic attack on the alpha-phosphate of GTP
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Gene Interactions
When the expression of a single trait is influenced by two or more different non-allelic genes, it is termed as genetic interaction. According to Mendel's law of inheritance, each gene functions in its own way and does not depend on the function of another gene, i.e., a single gene controls each of seven characteristics considered, but the complex contribution of many different genes determine many traits of an organism.
Gene Expression
Gene expression is a process by which the instructions present in deoxyribonucleic acid (DNA) are converted into useful molecules such as proteins, and functional messenger ribonucleic (mRNA) molecules in the case of non-protein-coding genes.
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Transcribed Image Text:What is the mechanism for addition of a guanosine to create
the 5' methyl cap of a mRNA?
O The 5'-OH end of the nascent mRNA performs a nucleophilic attack
on the gamma phosphate of GTP
O The gamma phosphate is removed from the 3' end of the nascent
MRNA and then the beta-phosphate attacks the phosphorus atom
of the alpha- phosphate of GTP
O The gamma phosphate is removed from the 5' end of the nascent
mRNA and then the -OH group from the beta-phosphate attacks
the phosphorus atom of the alpha- phosphate of GTP
O The 5'-OH end of the beta phosphate present on nascent mRNA
performs a nucleophilic attack on the alpha-phosphate of GTP
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