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Discussion and Debate
Discussion and Debate
Physical & Life Sciences
Remarkably well-preserved 18,000-year-old puppy found frozen in Siberia
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<blockquote data-quote="Brightmoon" data-source="post: 74511173" data-attributes="member: 407594"><p>. Are you serious? That is what evolution mainly is . Gene duplication, for example, changes how many copies of a gene there are. The consequences of doing that vary. Sometimes you get more protein from the genes. sometimes you get a feedback effect that shuts down the genes faster so you get more protein in less time . Sometimes you get a feedback effect that shuts both genes off. (They did that with a purple flower, iirc a petunia, gave it two purple pigment genes , expecting dark purple flowers and got pure white.) There are certainly other effects if these genes interact strongly with still other genes . Changing a single amino acid in a The DNA of a gene can change the rate that it forms a protein. It speed up or slow down how fast the cell makes it, without changing the protein itself .</p><p></p><p>Why would you think that this isn’t part of evolution. These affect how the organism responds to its environment?</p></blockquote><p></p>
[QUOTE="Brightmoon, post: 74511173, member: 407594"] . Are you serious? That is what evolution mainly is . Gene duplication, for example, changes how many copies of a gene there are. The consequences of doing that vary. Sometimes you get more protein from the genes. sometimes you get a feedback effect that shuts down the genes faster so you get more protein in less time . Sometimes you get a feedback effect that shuts both genes off. (They did that with a purple flower, iirc a petunia, gave it two purple pigment genes , expecting dark purple flowers and got pure white.) There are certainly other effects if these genes interact strongly with still other genes . Changing a single amino acid in a The DNA of a gene can change the rate that it forms a protein. It speed up or slow down how fast the cell makes it, without changing the protein itself . Why would you think that this isn’t part of evolution. These affect how the organism responds to its environment? [/QUOTE]
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Remarkably well-preserved 18,000-year-old puppy found frozen in Siberia
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