In XX gonads, germ cells are essential for the:

TLS Online TPP Program

#Question id: 31110

#Unit 2. Cellular Organization

To nucleate the assembly of unbranched actin filaments, Arp2/3 requires:

a) PIP2

b) NPF

c) Cdc42

d) Act A

TLS Online TPP Program

#Question id: 31111

#Unit 2. Cellular Organization

Arp2/3 needs to be activated by interacting with a nucleation promoting factor (NPF). Although there are many different NPFs, The major NPF family is characterized by the presence of a region called:

TLS Online TPP Program

#Question id: 31112

#Unit 2. Cellular Organization

Listeria is a food-borne pathogen that causes mild gastrointestinal symptoms. It enters animal cells and divides in the cytoplasm. Listeria has on its surface a protein called ActA, which mimics:

TLS Online TPP Program

#Question id: 31113

#Unit 2. Cellular Organization

Which of the following sequence is correct regarding the cycle of structural changes used by myosin II to walk along an actin filament?

TLS Online TPP Program

#Question id: 31114

#Unit 2. Cellular Organization

When the level of Ca²⁺ is raised, which of the following causes troponin I to release its hold on actin?

TLS Online TPP Program

#Question id: 31115

#Unit 2. Cellular Organization

Troponin C is closely related to the ubiquitous Ca2+-binding protein, called: