MCB 150 Exam 3 Review Questions With Complete
Solutions
3 Different types of Microtubules coming from PCM Correct
Answers Kinetochore MT's - Connect to Kinetochores
Polar MT's - doesn't hit a Kinetochore
Astra MT's - Runs into plasma membrane
THEY ALL HAVE DIFFERENT WAYS OF PULLING
CHROMOSOMES
3 Functions of Microtubules Correct Answers 1) Guiding
Cellular Transport
2) Segregating Chromosomes
3) Flagella Cilia and movement
Actin Monomers Correct Answers Made up of G(globular)-
Actin (full filament called F-actin)
has a Minus/Pointed end
has a Plus/Barbed end
Adaptation phase Correct Answers Cas 1 and Cas 2 work
together to find bacteriophage and acts as an endonuclease to cut
it up - then it integrates a part of the bacteriophage into crisper
locus
Amino Acid Change in First Letter Correct Answers Stay in
same relative position across the column
Amino Acid Change in Second Letter Correct Answers Stay in
the same relative position across the row
,Amino Acid Change in Third Letter Correct Answers Stay in
Same Box
Anaphase Correct Answers Pulling motion
Chromosomes clearly being pulled
Autocrine Signaling Correct Answers Where cells release
signals and they can recognize THEIR OWN signals and
respond to them
Average time spent across 4 Primary Phases of Culture Human
Cells? Correct Answers Longest time in G1 phase - Growth;
Checkpoint 1
Second Longest phase: S phase - Duplication
Third Longest is G2 phase - also Growth but mainly checkpoint
Shortest By FAR - MPhase
Basal Body vs Centriole Correct Answers Basal body literally
made from centriole so impossible to tell difference between
them visually. However, Basal body is where either the flagella
or cilia grow out of to stay connected to cell, and they only grow
because Basal body has gamma tubulin within that form central
pairs.
Building blocks of Microtubules Correct Answers Microtubules
are made up of Dimers. These dimers are made of tubulin which
has to be an a-tubulin bound to a b-tubulin.
Cause of Fragile X syndrome and Huntington's Disease
(Chromosome level) Correct Answers Duplications of short,
repeated sequences
, Cause of Hemophilia (Chromosome level) Correct Answers
Insertions
Cause of lymphomas/leukemias (Chromosome level) Correct
Answers Reciprocal Translocation
Causes of Duchenne's muscle dystrophy (Chromosome level)
Correct Answers Deletion
Causes of oncogenes becoming activated into cancers
(Chromosome level) Correct Answers Duplication
Centromere Correct Answers where sister chromatids are held
together
-Also attracts Kinetochore proteins
Centrosome Components Correct Answers Centrioles: 2 found
in central part of centrosome
Pericentriolar material: amorphous collection of
proteins/formation of microtubule
Chromosme level Correct Answers Hella Change bro
Insertions
Deltetions
Inversions
Translocations
Duplication
Solutions
3 Different types of Microtubules coming from PCM Correct
Answers Kinetochore MT's - Connect to Kinetochores
Polar MT's - doesn't hit a Kinetochore
Astra MT's - Runs into plasma membrane
THEY ALL HAVE DIFFERENT WAYS OF PULLING
CHROMOSOMES
3 Functions of Microtubules Correct Answers 1) Guiding
Cellular Transport
2) Segregating Chromosomes
3) Flagella Cilia and movement
Actin Monomers Correct Answers Made up of G(globular)-
Actin (full filament called F-actin)
has a Minus/Pointed end
has a Plus/Barbed end
Adaptation phase Correct Answers Cas 1 and Cas 2 work
together to find bacteriophage and acts as an endonuclease to cut
it up - then it integrates a part of the bacteriophage into crisper
locus
Amino Acid Change in First Letter Correct Answers Stay in
same relative position across the column
Amino Acid Change in Second Letter Correct Answers Stay in
the same relative position across the row
,Amino Acid Change in Third Letter Correct Answers Stay in
Same Box
Anaphase Correct Answers Pulling motion
Chromosomes clearly being pulled
Autocrine Signaling Correct Answers Where cells release
signals and they can recognize THEIR OWN signals and
respond to them
Average time spent across 4 Primary Phases of Culture Human
Cells? Correct Answers Longest time in G1 phase - Growth;
Checkpoint 1
Second Longest phase: S phase - Duplication
Third Longest is G2 phase - also Growth but mainly checkpoint
Shortest By FAR - MPhase
Basal Body vs Centriole Correct Answers Basal body literally
made from centriole so impossible to tell difference between
them visually. However, Basal body is where either the flagella
or cilia grow out of to stay connected to cell, and they only grow
because Basal body has gamma tubulin within that form central
pairs.
Building blocks of Microtubules Correct Answers Microtubules
are made up of Dimers. These dimers are made of tubulin which
has to be an a-tubulin bound to a b-tubulin.
Cause of Fragile X syndrome and Huntington's Disease
(Chromosome level) Correct Answers Duplications of short,
repeated sequences
, Cause of Hemophilia (Chromosome level) Correct Answers
Insertions
Cause of lymphomas/leukemias (Chromosome level) Correct
Answers Reciprocal Translocation
Causes of Duchenne's muscle dystrophy (Chromosome level)
Correct Answers Deletion
Causes of oncogenes becoming activated into cancers
(Chromosome level) Correct Answers Duplication
Centromere Correct Answers where sister chromatids are held
together
-Also attracts Kinetochore proteins
Centrosome Components Correct Answers Centrioles: 2 found
in central part of centrosome
Pericentriolar material: amorphous collection of
proteins/formation of microtubule
Chromosme level Correct Answers Hella Change bro
Insertions
Deltetions
Inversions
Translocations
Duplication
