Heat treated protein’s losses its stability and some changes abruptly over a narrow range, which can be measured in terms of-

#Question id: 1521

#Unit 4. Cell Communication and Cell Signaling

we examine how the deregulation of growth-promoting and growth-inhibiting signaling pathways contributes to tumorigenesis. Mutations-

A. A mutation that alters a single amino acid (valine to glutamine) in the transmembrane region of the HER2 receptor

B. A deletion that causes loss of the extracellular ligand-binding domain in the EGF receptor Results-

i. dimerization of the receptor, even in the absence of the normal EGF-related ligand, transforming it into the oncoprotein, a constitutively active kinase

ii. to constitutive activation of the kinase activity of the resulting oncoprotein

iii. no dimerization, even in the presence of the normal EGF-related ligand, repression of kinase activity

which of the following results are displayed after these mutations?

#Question id: 3544

#Unit 8. Inheritance Biology

Diploid organism possesses two alternative form of gene present on locus of chromosome that specifies particular character undergoes crossing over between gene and centromere. Which of the following observation is correct?

#Question id: 2831

#Unit 2. Cellular Organization

Specific DNA control elements in promoters can

a. interact with general transcription factors.

b. interact with repressor proteins.                 

c. interact with activator proteins.

d. remain unavailable because of condensed chromatin. 

#Question id: 2330

#Unit 2. Cellular Organization

The cell theory states that

#Question id: 14924

#Unit 8. Inheritance Biology