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BIOE 206 EXAM 3 QUESTIONS AND ANSWERS
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BIOE 206 EXAM 3 QUESTIONS AND ANSWERS
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Name: Score:135 Multiple choice questions
Definition 1 of 135
DNA Helicase uses energy from ATP hydrolysis to unwind DNA. It binds to the ori before
Primase does. The single strand binding proteins are inserted into the open strand so that it
doesn't rewind into the double helix shape.
A PCR mixture contains:
DNA Helicase and single-strand binding proteins
translation elongation
Unique feature of transcription in eukaryotic genes
Definition 2 of 135
electrical charge difference across a membrane due to a balance between the tendency of K+
ions to diffuse down their concentration gradient and the electric potential that holds them
back.
Membrane potential
Rosalind Franklin
Action Potentials
Action Potential Self Regeneration
Definition 3 of 135
proteins that bind to DNA sequences and to RNA polymerase. They help direct the polymerase
onto the promoter.
What does DNA need to replicate in a test tube?
Sigma factors and transcription factors
aminoacyl-tRNA synthetases
Neuromuscular Junctions
,Definition 4 of 135
bind transcription factors that repress transcription
Dendrites
Afferent neurons
silencers
Neurons
Definition 5 of 135
RNA polymerase binds to the promoter sequence
TAC Polymerase
translation elongation
Transcription Initiation
initiation site
Definition 6 of 135
DNA polymerase can go backwards and fix mistakes. It catches 99% of mismatches.
Proteolysis
Proofreading
Transcription requires
Glycosylation
Definition 7 of 135
Very long dendrites, can communicate over very long distances.
Chemical Synapse
Cerebral Cortex
retroviruses
Dendritic Cells
,Definition 8 of 135
Translation ends when a stop codon enters the A site. A protein release factor hydrolyzes the
bond between the polypeptide and the tRNA in the P site. The polypeptide then separates
from the ribosome.
translation termination
Neurotransmitter
3 Steps of transcription
Describe the directionality of DNA
Definition 9 of 135
provides communication between the central division and the rest of the body. (neurons in the
rest of the body).
Peripheral Nervous System
Chemical synapse
Bacteria DNA Replication
Blood Brain Barrier
Definition 10 of 135
Cells that are continuously diving have an enzyme called telomerase which catalyzes addition
of the lost telomeres. (its expressed in most cancer cells and is a target for anti-cancer drugs).
threshold
Transcription
Interneurons
Telomerase
, Definition 11 of 135
noncoding regions that are sliced out of pre-mRNA.
Neurons
Exons
Introns
Dendrites
Definition 12 of 135
found that the mode of DNA replication is semi-conservative meaning that the newly
replicated DNA strands contained one parent and one daughter.
Eukaryotic DNA Replication
Electrochemical gradient
Telomerase
Meselson-Stahl experiment
Definition 13 of 135
act rapidly; include barriers like skin, phagocytic cells, and toxins.
Adaptive defenses
Macrophages
Innate defenses
signal sequence
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