Following statements are regarding to the formins which involve in filament assembly.

A. All formin family members have two adjacent domains in common, the so called FH1 and FH2 domains (formin-homology domains 1 and 2).

B. Two FH2 domains from two individual formin monomers associate to form a doughnut-shaped complex can form a dimer and nucleate filament assembly.

C. The FH1 domain of formin is rich in proline residues, which serve as sites for the binding of several profilin molecules.

D. The FH2 domain behaves as a landing site for profilin–ATP–G-actin to increase the local concentration of these complexes.

E. Formins are activated by membrane bound Rho-GTP, a Ras-related small GTPase.

Which of the following combination is correct?

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#Question id: 14772

#Unit 13. Methods in Biology

Find the chance of throwing at least one ace in a simple throw with two dice numbered 1 to 6.

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#Question id: 1167

#Unit 4. Cell Communication and Cell Signaling

After a meal, when blood glucose rises, circulating insulin binds to insulin receptors on various cell types and reduces blood glucose levels by:

a. fusion of intracellular vesicles containing GLUT4 glucose transporters with the plasma membrane.

b. stimulation of the conversion of glucose to glycogen.

c. inhibition of glucose synthesis from smaller molecules.

Which of the following combination is correct?

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#Question id: 4323

#Unit 3. Fundamental Processes

Muscle cells differ from nerve cells mainly because they

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#Question id: 18755

#Unit 13. Methods in Biology

Once the double stranded molecule with the mutation is introduced into E. coli for replication, how many types of molecules are produced?

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#Question id: 13022

#Unit 10. Ecological Principles

A certain species of pine tree survives only in scattered locations at elevations above 2,800 m in the western United States. To understand why this tree grows only in these specific places an ecologist should