MCB 150 Exam 4 Questions With Complete Solutions
"life" cycle of virus Correct Answers get in, replicate, get out
-attachment
-penetration
-early gene expression
-replication
-late gene expression
-assembly
-release
(-) sense strand RNA viruses Correct Answers anti-parallel
complement of a (+) sense; RNA is complementary to mRNA;
needs to be copied before ribosome can recognize it; has to
bring along replicase with it
(+) sense strand RNA viruses Correct Answers translatable
molecule; RNA can be translate just as if t were mRNA; host
ribosome is tricked into recognizing it and will make protein
from that mRNA; 1st protein product is replicase
A tubule Correct Answers complete tubule
Absence of lactose Correct Answers repressor protein binds to
the operator to keep RNA form transcribing lac genes
Anaphase "A" Correct Answers movement of sister chromatids
to opposite poles via kinetochore microtubules
,Anaphase "B" Correct Answers spindles distance themselves
from each other, further separating sister chromatids. Polar MTs
"push" and astral MTs "pull" poles
Anaphase Correct Answers Anaphase A and B
Assembly Correct Answers "packaging" of new virus particles
from copied N.A. wrapped in new capsid proteins to prepare for
release
astral microtubules Correct Answers extend away from the
chromosomes, important for positioning the spindle apparatus
within the cell; towards the membrane
Attachment Correct Answers specific interaction of receptor on
surface of host cell
axon Correct Answers long nerve fiber that conducts away from
the cell body of the neuron; every MT is oriented in the same
direction; (+) end away from cell body and (-) end toward cell
body
axoneme Correct Answers functional unit of movement in cilia
and flagella; has a 9+2 arrangement of MTs;
axons and dendrites Correct Answers extensions of the
cytoplasm
B tubule Correct Answers incomplete tubule
, bacteriocin Correct Answers toxin harmful to other bacteria but
not itself
basal bodies Correct Answers structure where the minus ends of
MTs in cilia and flagella are anchored into; same structure as
centriole; 9 triplet arrangement; example of a MOC
blunt cut Correct Answers cutting right down the middle;
therefore no single stranded bases that can be complementary to
anything; no base pairing involved so any two blunt fragments
can be brought together
Blunt cutter Correct Answers EcoRV
cAMP Correct Answers cyclic AMP receptor protein
capsid Correct Answers protein coat shell; only to get virus
attached to cell; is left behind after injection of viral N.A.
cDNA Correct Answers Complementary DNA. DNA produced
synthetically by reverse trascribing mRNA. Because of
eukaryotic mRNA splicing, cDNA contains no irons; DOESNT
include promoter or SD seq.
cDNA library Correct Answers A collection of recombinant
vectors that represent the proteins expressed in a particular cell
at a particular time
cell clones Correct Answers each cell that arises from original
host cell will also have multiple copies of recombinant vector
"life" cycle of virus Correct Answers get in, replicate, get out
-attachment
-penetration
-early gene expression
-replication
-late gene expression
-assembly
-release
(-) sense strand RNA viruses Correct Answers anti-parallel
complement of a (+) sense; RNA is complementary to mRNA;
needs to be copied before ribosome can recognize it; has to
bring along replicase with it
(+) sense strand RNA viruses Correct Answers translatable
molecule; RNA can be translate just as if t were mRNA; host
ribosome is tricked into recognizing it and will make protein
from that mRNA; 1st protein product is replicase
A tubule Correct Answers complete tubule
Absence of lactose Correct Answers repressor protein binds to
the operator to keep RNA form transcribing lac genes
Anaphase "A" Correct Answers movement of sister chromatids
to opposite poles via kinetochore microtubules
,Anaphase "B" Correct Answers spindles distance themselves
from each other, further separating sister chromatids. Polar MTs
"push" and astral MTs "pull" poles
Anaphase Correct Answers Anaphase A and B
Assembly Correct Answers "packaging" of new virus particles
from copied N.A. wrapped in new capsid proteins to prepare for
release
astral microtubules Correct Answers extend away from the
chromosomes, important for positioning the spindle apparatus
within the cell; towards the membrane
Attachment Correct Answers specific interaction of receptor on
surface of host cell
axon Correct Answers long nerve fiber that conducts away from
the cell body of the neuron; every MT is oriented in the same
direction; (+) end away from cell body and (-) end toward cell
body
axoneme Correct Answers functional unit of movement in cilia
and flagella; has a 9+2 arrangement of MTs;
axons and dendrites Correct Answers extensions of the
cytoplasm
B tubule Correct Answers incomplete tubule
, bacteriocin Correct Answers toxin harmful to other bacteria but
not itself
basal bodies Correct Answers structure where the minus ends of
MTs in cilia and flagella are anchored into; same structure as
centriole; 9 triplet arrangement; example of a MOC
blunt cut Correct Answers cutting right down the middle;
therefore no single stranded bases that can be complementary to
anything; no base pairing involved so any two blunt fragments
can be brought together
Blunt cutter Correct Answers EcoRV
cAMP Correct Answers cyclic AMP receptor protein
capsid Correct Answers protein coat shell; only to get virus
attached to cell; is left behind after injection of viral N.A.
cDNA Correct Answers Complementary DNA. DNA produced
synthetically by reverse trascribing mRNA. Because of
eukaryotic mRNA splicing, cDNA contains no irons; DOESNT
include promoter or SD seq.
cDNA library Correct Answers A collection of recombinant
vectors that represent the proteins expressed in a particular cell
at a particular time
cell clones Correct Answers each cell that arises from original
host cell will also have multiple copies of recombinant vector
