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1. Rho Family GTPases (Rho, Rac, Cdc42) stimulate cytoskeleton microfilament assembly for all of the following except:

a. stress fiber formation

b. lamellipodia formation

c. nuclear envelope breakdown for mitosis

d. filopodia formation

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Jamar Ferry
Jamar FerryLv2
29 Sep 2019

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Related questions



2. Which of the three major classes of cytoskeletal elements does each statement below refer to?
A. monomer that binds ATP
B. includes keratin and neurofilaments
C. important for formation of the contractile ring during cytokinesis
D. supports and strengthens the nuclear envelope
E. their stability involves a GTP cap
F. used in the eucaryotic flagellum
G. a component of the mitotic spindle
H. can be connected through desmosomes
I. directly involved in muscle contraction
J. abundant in filopodia

Which of the following is mediated by ubiquitination?

A the removal of mitotic cyclins at the end of mitosis

B decondensing of the chromosomes at the end of mitosis

C release of CED-4 protein from mitochondria during apoptosis

D the inhibition of mitotic cyclin-dependent kinases (CDKs) until replication forks are gone

E dissolving the nuclear envelope during mitosis

3 Mitotic cyclin-dependent kinases (CDKs) phosphorylate all of the following EXCEPT

A chromatin associated proteins

B microtubule-associated proteins

C kinetochore proteins

D S-phase cyclin-CDKs

E nuclear envelope proteins

all of the following genotypes of C. elegans would lack apoptosis EXCEPT [1 mark]

A loss of function Ced-3 mutant

B double mutant for loss of function Ced-3 and loss of function Ced-9

C loss of function Ced-4 mutant

Dloss of function Egl-1 mutant

Eloss of function Ced-9 mutant

please explain

1. Nuclear pores are highly selective with great specificity for molecules passing through

a. true

b. false

2. The major chemical modification on proteins for signal transmission begins with this letter:

a. U

b. A

c. P

d. M

3. An organelle involved with the enzymzatic breakdown of biomolecules:

a. Nucleus

b. Mitochondria

c. Endoplasmic reticulum

d. Plasma membrane

e. Cytosol

f. Golgi apparatus

g. Lysosome

h. Peroxisome

i. The cytoskeleton

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