Tuesday, March 12, 2019

Noncoding (That Is, “Junk”) DNA Helps Cells Avoid Starvation

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Some researchers wondered whether all that junk DNA supposedly left over from Darwinian evolution actually did something after all so they tested the idea:

Patches of seemingly meaningless DNA dotted throughout the genome might actually have a function: helping cells to survive starvation. Two studies published in Nature on 16 January suggest that these stretches of non-coding DNA called introns help to control the rate at which cells grow, conserving energy when food becomes scarce. Michael Marshall, “Cryptic DNA sequences may help cells survive starvation” at Nature

Not just “junk DNA” any moreat The Scientist either, it would seem:

Two studies contest the idea that the noncoding sequences are just “junk DNA,” demonstrating that they play important roles in the regulation of cell growth. Researchers have long puzzled over why many eukaryotic protein-coding genes are interspersed with segments of noncoding DNA that have no obvious biological function. These so-called introns are typically spliced out from their original sequence between transcription and translation and rapidly destroyed prior to protein production. Two studies published today (January 16) in Nature now reveal an unexpected role for introns, at least in yeast: many of them linger in the cells long after splicing, and play an important role in regulating cell growth under stressful conditions. Katarina Zimmer, “A New Role for Yeast Introns: Helping Cells Cope Under Stress” at The Scientist

Well, many researchers weren’t just “puzzled”! Prominent researchers like Francis Collins used this “junk DNA” to promote Darwinism: See Francis Collins Admits His Own Prediction About Junk DNA Was False (Barry Arrington.......CLICK THIS LINK FOR THE RTAST OF THE STORY AT  https://uncommondescent.com/intelligent-design/noncoding-junk-dna-helps-cells-avoid-starvation
 

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