Molecular Biology Exam 3 Review

mRNA processing includes all of the following EXCEPT

• Addition of 5' cap

• Removal of introns

• Removal of exons

• Addition of Poly A tail

What is the correct order of mRNA processing

1. 1: intro removal

2. 2: addition of 5' cap

   1. 3: addition of Poly A tail

• 1, 2, 3

• 2, 3, 1

• 3, 1, 2

• 2, 1, 3

Addition of the methylated G cap is unique because it is added...

• 3' to 5'

• 5' to 3'

• 5' to 5'

• 3' to 3'

Which process uses RNA triphosphatase, RNA guanyltransferase, and methyl transferase?

• Intron removal

• Histone methylation

• Addition of 5' cap

• DNA methylation

The 5' binding site always contains a _____

• AU

• AG

• GT

• GU

The spliceosome uses which of the following complexes?

• A complex

• B complex

• Commitment complex

• Determination complex

Addition of the 3' Poly(A) tail utilizes which protein(s)?

• PABPN

• PABPG

• PABPC

• PABPP

If prokaryotes process RNA, they will use which mechanism?

• Group I self splicing

• Group II self splicing

• tRNA splicing

• Archeal splicing

What compose the ternary complex?

• eIF2

• eEF1A

• tRNA-met

• Met-tRNA

95% of the time, mRNA loading occurs through ______ using the enzyme _____

• cap dependent

• cap indepedent

• eIF2

• eIF4