Help with a biology lab question??????

Genetics as it applies to evolution, molecular biology, and medical aspects.

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jackyboy123
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Help with a biology lab question??????

Post by jackyboy123 » Tue Apr 26, 2011 2:05 pm

Scientists use the rate of mutations in DNA, which occur at regular rates, to predict when two organisms branched off from a common ancestor. Most scientist agree that the great apes - chimpanzees, gorillas, and orangutans - share a common ancestor with humans, but there is a fierce disagreement as to when the branching off occurred. Some scientists believe that the split was simultaneous, while others believe that the 1st to branch away were the orangutans, then gorillas, then chimps, and finally humans In this branching debate, which is more plausible according to your findings?

Btw these are my findings::: http://img822.imageshack.us/f/photoagbn.jpg/

Darby
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Post by Darby » Tue Apr 26, 2011 3:00 pm

Assume that the closer relatives share a closer ancestors.

This is both an evolution question and a interpret-your-results question; I would assume that your answer should match your results, even if your results are wrong (but not everybody corrects that way - some would look at an answer based on bad results to also be wrong).

kayeforare
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Post by kayeforare » Wed May 18, 2011 11:49 pm

For my answer, it was the apes as the first in line. Many of the scientist since then proved that they were truly the first one to exist. they were considered to be the great ancestors of human. But we all knew that till now many studies were done just to give justice into this study.

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