Which of the following signaling pathways can be activated by activation of receptor tyrosine kinases?

a. phospholipase Cγ                b. PI-3 kinase

c. MAP kinase                         d. none of the above

TLS Online TPP Program

#Question id: 23116

#Unit 2. Cellular Organization

Choose the correct statement 

a. The nucleosome is a disc with DNA organized into 22/3 turns around the core .

b. The nucleosome is a disc with DNA organized into 12/3 turns around the surface.

c. The nucleosome is a disc of 11 nm diameter and 6 nm height.

d. The nucleosome is a cylinder of 6 nm diameter and 11 nm height.

TLS Online TPP Program

#Question id: 23117

#Unit 2. Cellular Organization

Choose the correct statement of the following  

a. The nucleosome consists of approximately equal masses of DNA and histones (including H1). 

b. The four core histones are present in equal amounts in the cell.

c. H1 is half as abundant as the other histones, which is consistent with the finding that only one molecule of H1 can associate with a nucleosome.

d. One turn around the nucleosome takes 80 bp of DNA

TLS Online TPP Program

#Question id: 23118

#Unit 2. Cellular Organization

How many bp distance require to Two points helix may actually be one on another on nucleosome surface.

TLS Online TPP Program

#Question id: 23119

#Unit 2. Cellular Organization

Disparity in genome content vs evolutionary status is called as

TLS Online TPP Program

#Question id: 23120

#Unit 2. Cellular Organization

Mutation in exons causes reduction in

TLS Online TPP Program

#Question id: 23121

#Unit 2. Cellular Organization

Parity rules by Erwin Chargaff are given below match them correctly

A	B
1. First parity rule	a. GC Rule- GC content tends to be greater in exons than in introns
2. Second parity rule	b. Cluster rule – Purines in nontemplate strand applies more closely to Exons
3. Third parity rule	c. Rule of Equal amount applies more closely to introns than to exons
4. Fourth parity rule	d. Rule of complementarity