Genetic Exchange in Prokaryotes | Transformation & HGT
Автор: Study hub pro
Загружено: 2026-02-08
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Описание:
This lecture covers the essential mechanisms of Genetic Exchange in Prokaryotes for MCB 301. We move beyond simple binary fission to understand how horizontal gene transfer creates the genetic variability necessary for evolution.
Key Topics Covered:
Mutation vs. HGT: Why HGT is often a faster way for bacteria to acquire new traits.
Horizontal Gene Transfer Types: Detailed look at Transformation, Transduction, and Conjugation.
Molecular Mechanisms: How DNA moves across cell membranes in Gram-positive and Gram-negative bacteria.
Artificial Competence: Techniques like heat shock and electroporation used in modern biotechnology.
Video Chapter Ideas (Timestamps):
0:00 – Intro: Asexual Reproduction vs. Genetic Exchange
1:30 – Why Bacteria Transfer Genes (Survival & Adaptation)
3:15 – Horizontal Gene Transfer (HGT) vs. Mutation
5:00 – Transformation: Picking up "Naked" DNA
7:45 – The Fred Griffith Mouse Experiment
10:20 – What is Cellular Competence?
12:15 – Laboratory Applications: Making Artificial Competence
Would you like me to focus on one specific type of transfer, like Conjugation or Transduction, for a deeper dive?
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