Is Sex Necessary?
Is Sex Necessary? BIO 301-01
Popular in Principles of Ecology
verified elite notetaker
Popular in Biology
This 1 page Class Notes was uploaded by carr34 Notetaker on Wednesday October 12, 2016. The Class Notes belongs to BIO 301-01 at University of North Carolina - Greensboro taught by Robert H. Stavn in Fall 2016. Since its upload, it has received 13 views. For similar materials see Principles of Ecology in Biology at University of North Carolina - Greensboro.
Reviews for Is Sex Necessary?
Report this Material
What is Karma?
Karma is the currency of StudySoup.
You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!
Date Created: 10/12/16
Is Sex Necessary? Archaean seas (1.5 2.0 bya) [where sex originated from] O3 (ozone layer) + UV (damaged DNA) DNA repair? 50% lost of meiosis Recombination = Red Queen Hypothesis Ecological Model ● Fecund afford meiosis cost ● low? Asexual organisms constant or predictable environment ● Parthenogenesis aphids, rotifers, cladocera (onplania) ○ Predictable tends to dry up; shallow ○ Unpredictable males begin to form Alternative hypothesis ● Genetic repair ● Primordial trait meiosis (eukaryotic), complex organisms Inbreeding? ● Philopatry return to birth place to breed ○ High probably of breeding with cousins ○ birds , mammals ● Hermaphrodite both reproductive organs in the body ○ One hermaphrodite mate with different hermaphrodite ○ Plants, inverts (animals) Natural selection + sexuality ● Polygyny resource gluts ○ Harem energy flow available
Are you sure you want to buy this material for
You're already Subscribed!
Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'