16:10 | Descent with modification:
Giant armadillo and sloth fossils in South America |
18:00 |
Snake embryo have leg bumps , whale embryos have teeth |
18:45 |
Human embryo have gill slits that become bones of inner ear |
21:00 |
Artificial selection: variation in dogs : whippet bred by crossing greyhound with terrier |
26:00 |
Galapagos finches have different beaks adapted to different foods |
31:30 |
Rock Pocket Mouse living on desert rock has light fur, |
31:50 |
Rock Pocket Mouse has dark fur on volcanic soil
due to mutation (Pinacate Desert, Arizona) |
42:00 | Human Genome Project completed in 2003 and showed
23,000 genes |
44:00 |
Vertebrate embryos look similar (chicken, turtle, bat, human; share same body plan genes |
47:30 |
Fruit fly with spots differ in paintbrush gene; performs mating dance |
49:40 | Switch in junk DNA from spotted fly is inserted into spotless fly, together with glowing gene from jellyfish, producing
spotted recombinant fly |
55:00 |
Stickleback in freshwater lake has lost spikes on belly, unlike
ocean stickleback due to mutation in switch for body-plan gene, but has lopsided remnants (British Columbia) |
59:00 |
Manatees have lopsided pelvic bones |
1:00:00 | Galapagos finches differ in body-plan gene expression in
embryos , but same regulatory genes |
1:10:30 |
Flat-headed fossil fish Tiktaalik had flat head with upward-pointing eyes and arm-like fins 375 MYA |
1:14:00 |
Paddlefish HOX genes determine
fin development
and also in human arm bones |
1:26:50 |
Human hand can touch all 4 fingers with thumb controlled by
DNA switch in thumb development when injected into mouse |
1:33:20 |
Muscle-making gene has deletion of 2 nucleotides used for closing the jaw when a
chimp chews |
1:36:20 | Hansell Stedman proposes the weakened jaw muscles allow for
bigger skull in humans |
1:40:00 | 21 differnt
gene mutations in brain development causes microcephaly and very different from chimp gene |
1:46:00 | Most molecular differences between chimp and human are in
DNA switches especially for
cortex development |
16:10 Giant armadillo |
18:00 Snake embryo have leg bumps |
18:45 Human embryo have gill slits |
21:00 Artificial selection: variation in dogs |
26:00 Galapagos finches have different beaks |
31:30 Rock Pocket Mouse |
31:50 Rock Pocket Mouse has dark fur on volcanic soil |
31:50 due to mutation |
42:00 23,000 genes |
44:00 Vertebrate embryos |
47:30 Fruit fly with spots |
49:40 spotted recombinant fly |
55:00 Stickleback in freshwater lake |
55:00 ocean stickleback |
59:00 Manatees have lopsided pelvic bones |
1:00:00 embryos |
1:10:30 Flat-headed fossil fish Tiktaalik |
1:14:00 Paddlefish |
1:14:00 fin development |
1:14:00 and also in human arm bones |
1:26:50 Human hand |
1:26:50 DNA switch in thumb development |
1:33:20 Muscle-making gene |
1:33:20 chimp chews |
1:36:20 bigger skull in humans |
1:40:00 gene mutations in brain development |
1:46:00 DNA switches |
1:46:00 cortex development |
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