Is your second chromosome evidence for evolution? A popular evolutionary argument says chromosome 2 resulted when two chromosomes from an ape-like ancestor fused, explaining why chimps have more chromosomes than us. Let’s think through this claim and uncover the other side of the chromosome 2 story.
Up Next in S8: Genetics and DNA
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What is Information?
Can mutations create new information? To answer, we first have to pinpoint what those keywords mean. Mutations are permanent changes to DNA, which can produce helpful new traits under certain conditions. But can they produce useful, novel information to evolve one kind of creature into another? C...
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Can Mutations Create New Information?
Do mutations create the kind of new information required for microbes-to-man evolution? Mutations can produce new traits which may be beneficial in certain environments. But because genes often encode multiple layers of information, even “beneficial” mutations typically come at a cost. Let’s look...
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Thinking Through “New Information” Cl...
Often, claims that mutations produce useful new genetic information involve one of four processes: 1) duplication of information, 2) loss of control over how information is used, 3) degeneration of information, and 4) transfer of information. In each case, you can ask, “Does this involve somethin...
