Pointers

  1. Home
  2. Free Resources
  3. Pointers
  4. 1051
TLS Online TPP Program

#Id: 1051

Homeobox transcription factors, or Hox genes, play an essential role in specifying whether a particular mesenchymal cell will become stylopod, zeugopod, or autopod.

#Unit 5. Developmental Biology #Tetrapod Limb Development #Part B Pointers
PYQ Links
  1. PYQ 1
Extensive Links
  1. Link 1
More Pointers
TLS Online TPP Program

#Id: 380

#Unit 2. Cellular Organization

The histone-fold domain is composed of three a-helical regions separated by two short unstructured loops.
 
TLS Online TPP Program

#Id: 381

#Unit 2. Cellular Organization

Histone-fold domain mediates the assembly of Histone-only Intermediates
TLS Online TPP Program

#Id: 382

#Unit 2. Cellular Organization

H3 and H4 histones first form heterodimers that then come together to form a tetramer with two molecules each of H3 and H4. While H2A and H2B form heterodimers in solution but not tetramers. This assembly without DNA called Histone-only Intermediates 
TLS Online TPP Program

#Id: 383

#Unit 2. Cellular Organization

First the H3.H4 assemble into tetramer (HOI) then DNA wrapped over H3.H4 tetramer. 
TLS Online TPP Program

#Id: 384

#Unit 2. Cellular Organization
TLS Online TPP Program

#Id: 385

#Unit 2. Cellular Organization

H32-H42 tetramer accounts for the diameter of the octamer and H32-H42 tetramer alone can organize DNA in vitro into particles that display the properties of the core particle.