Does The Evidence Support Evolution? “More than a century ago, Darwin and Huxley posited that humans share recent common ancestors with the African great.

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Presentation transcript:

Does The Evidence Support Evolution? “More than a century ago, Darwin and Huxley posited that humans share recent common ancestors with the African great apes. Modern molecular studies have spectacularly confirmed this prediction…” 2005

Evolution is Testable Human & Ape Chromosome Numbers Hypothesis: Human chromosome 2 resulted from the fusion of two chromosomes present in the common ancestor of humans and the other great apes Human chromosome number is Chimpanzee chromosome number is Gorilla and orangutan chromosome numbers are Detailed analysis confirms common ancestry Banding patterns of humans and chimpanzees match Telomeres in the middle of human chromosome 2. centromere telomeres 48Orangutan 48Gorilla 48Chimpanzee 46Human 1958: Human chromosome number is : Chimpanzee chromosome number is : Gorilla and orangutan chromosome numbers are : Detailed analysis confirms common ancestry. 1980: Banding patterns of humans and chimpanzees match. 1982: Telomeres in middle of human chromosome 2.

Evolution is Testable Human & Ape Chromosome Numbers 1958 Human chromosome number is Chimpanzee chromosome number is Gorilla and orangutan chromosome numbers are Detailed analysis confirms common ancestry Banding patterns of humans and chimpanzees match Telomeres in the middle of human chromosome Sub-telomeric sequence confirmed Precise fusion point sequenced Chimpanzee genome sequenced Second centromere discovered. centromere telomeres 1991: Sub-telomeric sequence confirmed. 1992: Second centromere discovered. 2002: Precise fusion point sequenced. 2005: Chimpanzee genome sequenced.

48 chromosomes 46 chromosomes fusion

24 chromosomes: “ape” haploid number 23 chromosomes: “human” haploid number Adult with 48 chromosomesAdult with 47 chromosomes 4748

1 st Order Inbreeding

1 st Order Inbreeding

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