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TLS Online TPP Program

#Question id: 24190

Litigation is not always the only or best way to resolve conflicts. Mediation offers an alternative approach and it is one that can be quite efficient and successful. Mediation can be faster, less expensive, and can lead to creative solutions not always possible in a court of law. Additionally, mediation focuses on mutually acceptable solutions, rather than on winning or losing.

This paragraph best supports the idea that

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. there is too much reliance on litigation in our society.
  2. litigation is expensive, slow, and limited by its reliance on following the letter of the law.
  3. mediation is the best way to resolve a crisis.
  4. mediation can be an effective way to resolve conflicts.
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TLS Online TPP Program

#Question id: 23830

#Unit 2. Cellular Organization

The first myosin isolated from skeletal muscle;
TLS Online TPP Program

#Question id: 23829

#Unit 2. Cellular Organization

Myosins don’t have 
TLS Online TPP Program

#Question id: 23798

#Unit 2. Cellular Organization

Myosin is
TLS Online TPP Program

#Question id: 14766

#Unit 2. Cellular Organization

Which of the following statements does not belongs to the regulatory mechanism of the Arp2/3 complex by WASp and PI(4,5)P2?
TLS Online TPP Program

#Question id: 14765

#Unit 2. Cellular Organization

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?
TLS Online TPP Program

#Question id: 14764

#Unit 2. Cellular Organization

Match the following proteins (Column I) with their function (Column II). Which of the following is correct?

Column I

Column II

a. Profilin

i. binds to the (+) end of an actin filament, thereby inhibiting subunit addition or loss.

 

b. Cofilin

ii. blocks (−) ends, inhibits filament disassembly, to stabilize filaments

c. Thymosin-β4

iii. involved in actin treadmilling, but it binds specifically to F-actin in which the subunits contain ADP

d. Cap Z

iv. binds ADP–G-actin and catalyzes the exchange of ADP for ATP

e. Tropomodulin

v. binds to ATP–G-actin in such a way that it inhibits addition of the actin subunit to either end of the filament.