MCB*2050 Molecular Biology of the Cell W21 Midterm Examination, SAMPLE EXAM with Prof. K. Yankulov University of Guelph
8 views 0 purchase
Course
MCB*2050 Molecular Biology of the Cell
Institution
MCB*2050 Molecular Biology Of The Cell
MCB*2050 Molecular Biology of the Cell W21 Midterm Examination, SAMPLE EXAM with Prof. K. Yankulov University of Guelph
PART A (Choose only one and the best answer among the choices given.)
1. What happens when you use a mixture of four fluorescent 2′,3′-dideoxyribonucleoside triphosphates ...
MCB*2050 Molecular Biology of the Cell W21 Midterm
Examination, SAMPLE EXAM with Prof. K. Yankulov
University of Guelph
MCB*2050 Molecular Biology of Cell
Midterm Examination, SAMPLE
EXAM
Instructor: Prof. K. Time: 90
Yankulov minutes
The midterm will consists of two parts: Part A and B.
Part A will consists of 20-40 multiple choice questions. 6-12 of these questions will be
derived from the online quizzes pools, 1-2 questions from each quiz. There will be
questions on the material from tutorials and from the lectures
PART B consists of 4-5 short answer questions. One of these questions will be from the
Tutorials. 3- 4 questions will be on the lecture material.
Page 1 of
, PART A (Choose only one and the best answer among the choices given.)
1. What happens when you use a mixture of four fluorescent 2′,3′-
dideoxyribonucleoside triphosphates in DNA sequencing protocols?
a. Multiple DNA chains that terminate at the 3’ ends at all possible
nucleotide positions are produced
b. When a 2′,3′-dideoxyribonucleoside triphosphate is added to the 5’ end
of a DNA chain, that chain can no longer be extended
c. The produced DNA chains will contain all four 2′,3′-
dideoxyribonucleoside triphosphates and these can be detected
by spectrophotometer
d. The incorporation of a fluoresent 2′,3′-dideoxyribonucleoside triphosphate
will intiate a chemical reaction that produces light in a well and can be
detected by a scanning camera
e. None of the above answers is correct
2. The regulation of gene expression through heritable modifications in
chromatin structure is called:
a. Epigenetic regulation
b. Signal transduction regulation
c. Transcriptional regulation
d. Gene expression regulation
e. Genetic regulation
3. In eukaryotic cells, gene regulation occurs at multiple levels.
Enhancer elements represent a component of which level of control?
a. Translational control
b. Post-translational control
c. Transcriptional control
d. Post-translational control
e. mRNA stability
4. Histone acetyl transferases (HATs) acetylate i) residues in ii) of
histones resulting in a loosening of the DNA-nucleosome interactions which
acts to
iii) transcription.
a. i) Lysine; ii) N-termini; iii) promote
b. i) Lysine; ii) core domain; iii) promote
c. i) Serine; ii) N-termini; iii) decrease
d. i) Serine; ii) core domain; iii) decrease
e) i) Lysine; ii) N-termini; iii) promote
5. The image below shows the results of a gel shift assay. Each column (i.-vi.)
contains a sample with the same radioactive oligonucleotide probe
complementary to a region of DNA which is suspected to be an enhancer
sequence. This DNA is known to bind several transcription factors of the same
family (HFN).
Page 2 of
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller smartzone. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.99. You're not tied to anything after your purchase.
