“It’s the original question. When Charles Darwin was piecing together his ideas, nobody had any knowledge of DNA or genes. He was able to deduce the principles of natural selection, but he was almost completely limited to life’s external and internal shapes. Today, we can look into the code of life inside every living thing. Now we can get at the mechanism of evolution. We can look at the molecular record that documents the inside story of how new species emerge and drift away from each other ov...er time. A revolution in gene mapping has sparked a revolution in evolutionary theory as well. In 1973 the Ukrainian-American geneticist Theodosius Dobzhansky wrote a compelling essay, “Nothing in Biology Makes Sense Except in the Light of Evolution.” He is generally credited with starting the discussion or intellectual dialog often called the “new synthesis” of evolution. Dobzhansky incorporated the biochemical details and role of the technical description of a gene: the specific sequence of nucleotides (aka, the genetic code) that comprise a portion of a chromosome.MoreLessRead More Read Less
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