In mammals, the bipotential gonad appears to be moved into the female pathway (ovary development) by the Foxl2, Wnt4, and Rspo1 genes.

TLS Online TPP Program

#Id: 4000

#Unit 2. Cellular Organization

(MARs) also called scaffold attachment regions (SARs), or S/MARs in case of metaphase chromosome as the same sequences appear to attach to the protein substructure in both metaphase and interphase cells.

TLS Online TPP Program

#Id: 4002

#Unit 2. Cellular Organization

If histones are depleted from a metaphase chromosome and viewed under a transmission electron microscope shows SCAFFOLD. Which is almost 8% of wt

TLS Online TPP Program

#Id: 4003

#Unit 2. Cellular Organization

Full relaxation of the supercoils requires 1 nick/85 kb, thus identifying the average length of “closed” DNA. This region could comprise a loop or domain similar in nature to those identified in the bacterial genome called as metaphase scaffold.

TLS Online TPP Program

#Id: 4004

#Unit 2. Cellular Organization

S/MARs is a DNA sequence which is generally located between H1 and H3 binding sites.

TLS Online TPP Program

#Id: 4005

#Unit 2. Cellular Organization

Radial loops in metaphase chromosomes. In the radial loop model of metaphase chromosome organization, domains of 30 kb to 100 kb emanate from a central protein scaffold that spirals through the axis of each chromosome arm..

TLS Online TPP Program

#Id: 4007

#Unit 2. Cellular Organization

Matrix-associated regions (MARs) may be identified by characterizing the DNA retained by the matrix isolated in vivo (left) or by identifying the fragments that can bind to the matrix from which all DNA has been removed (right).