In other words, all species have descended from other species and all living things share common ancestors in the past. ... In 1858, Charles Darwin introduced a theory of evolution that is accepted by almost all scientists today. ... But Darwin's theory was better developed and more famous. ... Darwin observed that wild animals and plants showed variations just as domesticated animals and plants did. ... All that evidence is what supported Darwin's theory about natural selection. ...

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• Approx Pages: 11
• Grade Level: High School

This biggest advance in genetics at the time came when Charles Darwin, in support of his theory of evolution by natural selection, put forth a modified version of pangenesis (DNA Watson). According to Darwin, the organs of an animal had "gemmules" that accumulated in the sex organs and were consequently exchanged during sexual reproduction (Darwin Species). His theory differed from the original pangenesis line of thought in that gemmules were in constant production during the organism's lifetime, thus if an advantageous change were to affect the organism, it could be passed on to its of...

• Word Count: 2807
• Approx Pages: 11