MMW 1 10.3.07

MMW 1 10.3.07 - MMW 1 10/3/07 Wednesday, Week One I....

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
MMW 1 10/3/07 Wednesday, Week One I. Natural Selection (finish) -Variation among individuals in a population -Variation must be heritable -Differential (greater) reproductive success associated with these heritable variable characteristics, confers an advantage onto you -Mutation – alter the DNA, adds variability to the genome, most mutations are not successful, mutation in one environment that’s successful may not be successful in another -Random – not counting on mutation to happening -We already have a lot of variability i.e. myxomatosis – up until 1859 there were no rabbits in Australia, when a rancher introduced 12 pairs of rabbits from Europe, rabbits entered a new niche where they didn’t find many predators. -1865, 20,000 rabbits were killed off in a hunting drive but there are still many rabbits. -By 1900, there were hundreds of millions of rabbits, which caused a problem because rabbits fed on the same material sheep fed upon. The Australian government, however they tried, couldn’t get rid of rabbits. -In 1950, they introduced an epizooiological experiment (non-human
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 2

MMW 1 10.3.07 - MMW 1 10/3/07 Wednesday, Week One I....

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online