Chapter 3, Problem 2DQ

Summary Introduction

To review:

A cell's identity determined by one transcription factor complex to one regulatory element, leading to expression of one gene. The requirement of genes to establish a specific cell's fate.

Introduction:

Transcription factors arranged in combination with families based on DNA resemblances in the DNA binding domains. The transcription factors in every family share a communal background at their DNA binding site, and a slight modification in the amino acids at attachment site can make binding site to allow distinct sequences of DNA.