Module 7 Exams All Versions Latest Update/ Verified
Institution: Portage Learning
Course Code: BIOL103/BIO 103
Course Title: Medical Terminology
Exam: Module 7
Assessment Type: Examination
Edition: Updated Version
Student Name: _______________________________
Student Id: _________________________________
Instructor: _________________________________
Instructions:
Answer All Questions.
Choose The Correct Answer
Questions Type:
➢ Multiple Choice:
➢ True Or False:
➢ Explain/Describe/ Identification
➢ Fill In The Blank
➢ Short Answer
All The Best!!
,1. Multiple Choice
Errors In DNA Replication Can Come From _____.
A) DNA Helicase
B) DNA Polymerase
C) RNA Polymerase
D) Ligase
DNA Polymerase Is Responsible For Copying DNA, And Errors Can Occur During This
Process.
2. True Or False
DNA Pol Iii Catalyzes The Addition Of Successive Nucleotides To The 5' End Of A
Growing Polynucleotide Chain.
A) True
B) False
DNA Polymerase Adds Nucleotides To The 3' End, Not The 5' End.
3. Fill In The Blank
From The DNA X-Ray Crystallography Data, Franklin And Wilkins Inferred That ____,
While Watson And Crick Determined That ____.
A) DNA Is Helical; DNA Is Double-Stranded
B) DNA Is Linear; DNA Has Complementary Strands
C) The Flat Nucleotide Bases Are Stacked Upon Each Other; DNA Is Helical
D) DNA Contains Nucleotides; DNA Forms A Ladder
,Franklin And Wilkins Observed Stacked Bases; Watson And Crick Deduced The Helical
Structure.
4. Multiple Choice
The Two Molecules That Alternate To Form The Backbone Of A Polynucleotide Chain
Are:
A) Sugar And Amino Acids
B) Phosphate And Amino Acids
C) Sugar And Phosphate
D) Nitrogen Bases And Sugar
The Backbone Of DNA Is Composed Of Alternating Sugar And Phosphate Groups.
5. Fill In The Blank
When A Mutation Occurs During DNA Replication, ____ Replaces The Incorrect
Nucleotide With The Correct One After The Mismatched Nucleotide Has Been
Removed.
A) DNA Ligase
B) DNA Polymerase
C) RNA Polymerase
D) Topoisomerase
DNA Polymerase Has Proofreading Activity That Corrects Mismatched Nucleotides.
6. True Or False
If You Consider A DNA Molecule To Resemble A Twisted Ladder, The Rungs Of The
Ladder Are Paired Nitrogen Bases.
A) True
, B) False
Nitrogenous Bases Pair To Form The “Rungs” Of The DNA Ladder.
7. True Or False
In Mismatch Repair, Enzymes Remove Incorrectly-Paired Nucleotides.
A) True
B) False
Mismatch Repair Corrects Errors That Escape DNA Polymerase Proofreading.
8. True Or False
Short, Noncoding, Guanine-Rich DNA Sequences Found At The Ends Of Chromosomes
Are Called Telomeres.
A) True
B) False
Telomeres Protect Chromosome Ends From Degradation.
9. Fill In The Blank
____, The Ends Of Eukaryotic Chromosomes, Shorten With Every Cell Division.
A) Centromeres
B) Telomeres
C) Introns
D) Exons
Telomeres Shorten During DNA Replication Due To The End-Replication Problem.