BIOL 1202 Chapter : BIOL 1202 Ch 22
Document Summary
Descent with modification: a darwinian view of life. The first convincing case of evolution was published by charles darwin in 1859. Descent with modification- changes that are going to occurs over generational times. Genetics makeup of organisms a change in the frequency of the alleles of a population. How these changes occur : mutation which favors one allele over another, mutation which creates a new allele that is favored. 100 generations over time are usually when you start to see a change in the allele. Several generations for the organism for bacteria => a day or two could be plenty for humans => may be 200-300 years. The most popular hypothesis for the origin of species was creationism. --creationism states that all species were created exactly as they exist today. May be strictly biblical or may involve continual creation. The evidence of some of the organisms which have existed on earth is preserved as fossils.
