MCB 3020 Microbiology Exam 2

Exam 2, MCB 3020 (spring 2020)
James T. Riordan, Ph.D.




MCB 3020
Microbiology
Exam 2
Monday, Mar. 9, 2020

Instructions:

Please include your name and U# on your assigned
Scantron sheet
There are 48 questions, worth 48 points
You have 75 minutes to complete the exam.
You are allowed to write on the exam.
Read each question carefully, and choose the BEST
answer!

, Exam 2, MCB 3020 (spring 2020)
James T. Riordan, Ph.D.

PROKARYOTIC GENOMES


1. Some prokaryotes have linear chromosomes.

O
A. True
B. False

2. Why is it that the human genome is 1000X the size of the E. coli genome, yet only has 8X
the number of genes?

A. Many of the mRNAs in human genes are spliced
O
B. Much more DNA in the human genome is non-coding
C. Much more DNA in E. coli is noncoding
D. Many of the genes in the human genome are redundant
E. The genes in the human genome are much larger



DNA 101:


3. DNA-binding proteins commonly interact with what structural region of DNA?

A. Polyphosphate backbone
B. oriP
C. 5-prime ends
D. Hairpin terminators
O
E. Major groove

4. Which of the following is NOT a building block of DNA?

A. Purines
O
B. Ribose
C. A triphosphate residue
D. Pyrimidines
E. A nitrogenous base