What determines where is front and back top and

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: where is front and back, top and bottom? How do some cells know to stick together, others migrate to certain places, others become skin, or feather or bone? Cell Adhesion 2 main kinds of cell arrangements Differential cell adhesion Bicoid gradient in Drosophila Cell adhesion molecules Many different types of molecules hold cells together Largest class are called the cadherins Cadherins span the cell membrane and stick best to the same type (homotypic binding) Catenins connect cadherins to the actin cytoskeleton Classical fate mapping Modern cell lineage analysis...
View Full Document

This document was uploaded on 04/01/2014.

Ask a homework question - tutors are online