Bacterial and Archaeal Genetics — Horizontal Gene Transfer & CRISPR Defense | Chapter 9 of Brock Biology of Microorganisms
Bacterial and Archaeal Genetics — Horizontal Gene Transfer & CRISPR Defense | Chapter 9 of Brock Biology of Microorganisms Welcome to Last Minute Lecture . In this post, we summarize Chapter 9 of Brock Biology of Microorganisms , which explores how microbes generate genetic diversity and defend themselves against foreign DNA. You’ll learn about mutation types, DNA repair, and horizontal gene transfer via transformation, transduction, and conjugation. Plus, we cover mobile DNA elements and the powerful CRISPR–Cas defense system. 🎥 Watch the full podcast summary here: This chapter is essential for understanding microbial evolution, genetic engineering, and biotechnology applications. Mutations and Genetic Variation Mutation = heritable change in DNA sequence Types: Point mutations: missense, nonsense, silent Frameshift: insertions or deletions Transitions (purine→purine) vs. transversions (purine↔pyrimidine) Reversions and suppressor...