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TLS Online TPP Program

#Question id: 1664

A given Ig isotype is:

#Unit 4. Cell Communication and Cell Signaling

  1. A heavy chain variant encoded by allelic genes

  2. A light chain constant region encoded by allelic genes

  3. Present in all normal individuals

  4. A collection of hypervariable region epitopes recognized by an anti-idiotype

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TLS Online TPP Program

#Question id: 12093

#Unit 10. Ecological Principles

The resemblance of body structure and mode of life of some species of Australian marsupials to certain species of placental mammals is an example of
TLS Online TPP Program

#Question id: 24255

#Unit 2. Cellular Organization

Which of the following is responsible for the diameter of the octamer
TLS Online TPP Program

#Question id: 2438

#Unit 2. Cellular Organization

Rac, a GTPase superfamily protein,

a. is related to Ras.                             

b. may be activated by growth factors.

c. stimulates lamellipodia formation. 

d. stimulates filopodia formation.

e. stimulates stress fiber assembly.
TLS Online TPP Program

#Question id: 1130

#Unit 4. Cell Communication and Cell Signaling

In muscle cells, glycogen phosphorylase kinase is activated by

a. Ca2+.           b. diacylglycerol.   c. nitric oxide.       d. protein kinase A.    
TLS Online TPP Program

#Question id: 801

#Unit 1. Molecules and their Interaction Relevant to Biology

Identify the type of DNA from the structures given below and match the correct form with its characteristics described.