Molecular Biology Week 4 Quiz Comprehensive Questions (Frequently Tested) and Complete Solutions Graded A+

Molecular Biology Week 4 Quiz


1. Place the following events in proper sequential order:
Addition of 5’ Cap to mRNA ___
Transcriptional termination ___
Export of mRNA from nucleus to Cytosol ___

A. 3,2,1
B. 3,1,2
C. 1,2,3
D. 2,1,3

For questions 2-5 match the following terms with the correct description

2. Coding sequence Exon
3. Region of DNA found upstream of coding sequence that plays important role in initiating expression Promoter
4. Short consensus sequence the facilitates assembly of transcriptional proteins TATA box
5. DNA binding protein that plays important role in initiating transcription Transcription factor

a. Promoter
b. Exon
c. Intron
d. Transcription Factor
e. TATA Box
f. RNA polymerase II

6. You measure the expression of mRNA from a coding sequence. You find that there are 100 mRNA molecules
generated from this sequence. Based on this information:

A. There will be 100 proteins that will be translated from these mRNA
B. There will be 10 proteins that will be translated from these mRNA
C. There will be 1 protein that will be translated from these mRNA
D. There will be no protein translated from these mRNA
E. You cannot determine how many proteins will result from these mRNA

7. Translation involves the recognition of codons on mRNA by the ______ of _____.

A. small subunit, ribosome
B. large subunit, ribosome
C. amino acid, tRNA
D. anticodon, tRNA
E. anticodon, ribosome