Slide 1A Brief History of Mullers Ratchet Slide 2 H.J. Muller (1964, Mutation Research 1: 2-9) pointed out that … an asexual population incorporates a kind of ratchet mechanism,…

Slide 1 Why Sex? Slide 2 Asexual reproduction produces offspring that are exact copies Amoeba porn flicks Slide 3 Sexual reproduction produces offspring with genetic variation…

Slide 1 I. Evolution of Sex A. Asexual v. Sexual Reproduction B. Theories on the evolution of Sex 1) Unpredictable environment – Red Queen 2) Deleterious mutation – Muller’s…

A Brief History of Muller’s Ratchet. H.J. Muller (1964, Mutation Research 1: 2-9) pointed out that - PowerPoint PPT Presentation

Sexual Selection Sexual Selection Christina Saremi PSYC141 What is Sexual Selection? Proposed in 1871 by Charles Darwin Acts on an organism's ability to obtain or copulate…

Slide 1 Asexual vs. Sexual Reproduction Disadvantages, Advantages and Types Slide 2 Asexual Reproduction What is it?  production of individuals without gametes  fission…

Lecture 4 The central role of parasites in evolution Today: Case study I: Parasite Red Queen and the advantage of sex Case study II: How the Peacock got its tail? Sexual…