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BMS 300 EXAM 1; QUESTIONS AND ANSWERS
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BMS 300 EXAM 1; QUESTIONS AND ANSWERS...
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BMS 300 EXAM 1; QUESTIONS ANDANSWERS
Which of the following bonds are responsible for the dipole moment of a water
molecule?
a) Hydrogen bonds
b) Ionic bonds
c) Nonpolar bonds
d) Covalent bonds - ANSWER d) Covalent Bonds
Clinical trials are underway testing the effectiveness of mRNA vaccines against
the HIV, Zika, rabies, and Ebola viruses. If an mRNA vaccine were injected
into an individual, how would the mRNA be read?
a) 3'-5' by the larger ribosomal subunit
b) 5'-3' by the larger ribosomal subunit
c) 3'-5' by the small ribosomal subunit
d) 5'-3' by the small ribosomal subunit - ANSWER d) 5'-3' by the small
ribosomal subunit
What two things MAY have a nuclear localization factor?
a) DNA, RNA, and histone proteins
b) DNA and RNA
c) RNA and polymerase proteins
d) DNA and secreted proteins - ANSWER c) RNA and Polymerase proteins
Which of the following ions has a higher intracellular concentration?
, a) Na+
b) Ca2+
c) Cl-
d) K+ - ANSWER d) K+
What is the name of the polymerase that transcribes mRNA?
a) RNA polymerase I
b) RNA polymerase II
c) RNA polymerase III
d) All of the above - ANSWER b) RNA polymerase II
Which of the following proteins would have a signal peptide?
a) Na+/K+ ATPases
b) Spliceosomes
c) Clathrin Proteins
d) Myosin Motor Proteins - ANSWER a) Na+/K+ ATPases
What would you expect the DNA in mitochondria to be?
a) Bound to histones
b) Contained in a nucleus
c) Circular
d) Organized in chromosomes - ANSWER c) Circular
Between the time pre-mRNA is made and the time when introns are removed, a
type of RNA called SnoRNA adds a methyl group to some of the bases on the
pre-mRNA. Where would you expect SnoRNA to work?
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