Keyword Analysis & Research: theory of evolution dna

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How does DNA provide evidence of evolution?

DNA supports evolution because all life on Earth carries DNA, and evolution happens only after DNA changes. These changes are called mutations and happen spontaneously from flawed DNA copying or from mutagens, such as X-rays or chemicals.

What is the history of the theory of evolution?

In the early 19th century Jean-Baptiste Lamarck (1744 – 1829) proposed his theory of the transmutation of species, the first fully formed theory of evolution. ... In 1858 Charles Darwin and Alfred Russel Wallace published a new evolutionary theory, explained in detail in Darwin's On the Origin of Species (1859).

Is DNA proof of evolution?

DNA Proves Evolution. Many human genes seem to work quite well, thank you, when functionally tested in fruit flies, where they initiate genetic cascades that drive the formation of discrete fly body parts. That is, in many cases fly and human genes are functionally interchangeable.

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