Low-percentage acrylamide gels are also used to separate

A) Large DNA

B) Large proteins

C) Large RNA

D) All DNA, Proteins, RNA

TLS Online TPP Program

#Question id: 31090

#Unit 4. Cell Communication and Cell Signaling

Intramitochondrial calcium directly increases the activities of three mitochondrial enzymes, except:

TLS Online TPP Program

#Question id: 2581

#Unit 2. Cellular Organization

Match the following toxins (Column I) with their effects (Column II) on actin.

Column I	Column II
A. Cytochalasin D	i. Enhances nucleation by binding and stabilizing actin dimers and thereby lowering the critical concentration.
B. Latrunculin	ii. Binds at the interface between subunits in F-actin, locking adjacent subunits together and preventing actin filaments from depolymerizing.
C. Jasplakinolide	iii. Depolymerizes actin filaments by binding to the (+) end of F-actin, where it blocks further addition of subunits.
D. Phalloidin	iv. Binds and sequesters G-actin, inhibiting it from adding to a filament end.

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#Question id: 12032

#Unit 7. System Physiology – Animal

If you were to jog one kilometer a few hours after lunch, which stored fuel would you probably tap?

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#Question id: 14685

#Unit 4. Cell Communication and Cell Signaling

In dark-adapted rod cells, a high level of cGMP keeps cGMP-gated nonselective cation channels open, leading to hyperpolarization of the plasma membrane and neurotransmitter release. 

B - Light absorption generates activated rhodopsin, R*, which binds inactive, GDP-bound Gαt protein and mediates the exchange of GDP for GTP . 

C- The free Gαt∙GTP activates PDE by binding to its inhibitory γ subunits and dissociating them from the catalytic α and β subunits . Relieved of their inhibition, the α and β subunits of PDE hydrolyze GMP to cGMP . 

D- The resulting decrease in cytosolic cGMP leads to dissociation of cGMP from the cation channels in the plasma membrane and the closing of those channels . 

E- The membrane then becomes transiently hyperpolarized, and neurotransmitter release is reduced. 

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#Question id: 24472

#Unit 3. Fundamental Processes

Which of the following subunit of yeast gene may function as function with Rpb11 as ortholog of the alpha dimer of prokaryotic RNA polymerase