ap biology - gene regulation & lac operon

timestamps

• 0:00

  Introduction to Gene Regulation

• 0:34

  Purpose of Gene Regulation

• 1:35

  Gene Expression in Cells

• 2:06

  Feedback Mechanisms Overview

• 3:09

  Regulation Methods Explained

• 3:40

  Prokaryotic vs Eukaryotic Regulation

• 4:42

  Lac Operon Introduction

• 5:42

  Promoter and Operator Regions

• 6:46

  Repressor Protein Function

• 9:25

  Repressible vs Inducible Operons

• 11:31

  Inducible Operon Details

• 13:06

  Lac Operon Mechanism

• 15:40

  Lactose as Inducer

• 17:47

  Repression After Digestion

• 19:52

  Repressible Operon Details

• 21:25

  Tryptophan Synthesis

• 23:30

  Co-Repressor Activation

• 25:34

  Eukaryotic Gene Regulation

• 27:36

  Chromatin Structure Regulation

• 29:40

  Enhancer Regions and Activators

• 32:15

  2016 Exam Graph Analysis

• 34:53

  Part A: Population Density

• 36:25

  Part B: Growth Rate Calculation

• 38:00

  Part C: Preferred Nutrient

• 40:08

  Nutrient Preference Advantages

• 42:09

  Part D: Nutrient Regulation

• 44:13

  No Growth Between Hours 5-6

• 46:18

  Upcoming Session and Closing