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Cell Biology

Selling Stem Cells to Voters
October 15, 2008
If you thought embryonic stem cell research became moot after researchers found they could induce skin cells to become pluripotent, these news stories show the push is still on to open up more funds for embryonic stem cells.  A ballot measure in Michigan is a bellwether for how scientists still feel about these tantalizing objects […]
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Amazing Facts

Plants Have Thermostats
October 13, 2008
Plants, being stuck in the ground, have few options when it gets hot.  They may not be able to move into the shade like animals, but they know how to cope.  They have a built-in thermostat that acts like a fire prevention department.  Science Daily tells the story.     Researchers at Michigan State identified […]
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Amazing Facts

Deep Life Is Right at Home in Total Darkness
October 10, 2008
It seems every year scientists find organisms thriving in environments thought too inhospitable for life.  A new word was coined for these organisms: extremophiles – lovers of the extreme.  Two recent discoveries push the envelope of extreme environments almost to the deep limit. Pressurized fish:  The bottoms of the deep ocean trenches of the Pacific […]
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Dumb Ideas

It’s Fun Seeing Evolution Falsified
October 8, 2008
“Mysterious Snippets Of DNA Withstand Eons Of Evolution” is the strange title of an article on Science Daily.  Gill Bejerano and Cory McLean from Stanford are wondering why large non-coding sections of DNA are very similar, or “ultraconserved,” from mice to man (see 08/18/2007).  Evolutionary theory would expect that non-functional genetic material would mutate more […]
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Dumb Ideas

How the Evolution Story Became Like Jellyfish
September 30, 2008
“How the [blank] got its [blank]” is the template for story titles imitating Rudyard Kipling’s Just-So Stories: i.e., How the Camel Got His Hump and How the Leopard Got His Spots.  Kipling wrote these as silly stories to entertain children, not to be taken seriously by scientists.  Knowing that creationists often criticize Darwinian explanations as […]
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Amazing Facts

Leaves Don’t Fall; They’re Pushed
September 22, 2008
Rocks may fall (thus the need for warning signs on highways), but leaves are pushed off of trees by a genetic program.  The process, called abscission, has been mysterious for a long time.  A team from the University of Missouri has mapped out, for the first time, the abscission pathway in one plant.  Being this […]
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Birds

Flightlessness Evolved Four Times
September 10, 2008
An article on Science Daily claims that the famous flightless birds – African ostriches, Australian cassowaries and emus, New Zealand kiwis and South American rheas – are unrelated.  There was no flightless common ancestor.  They lost their ability to fly independently, scientists say, because of “parallel evolution.”     This would also mean that emus […]
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Darwin and Evolution

How Not to Prove Positive Selection
September 5, 2008
Erase all that evidence for positive natural selection in the genes you’ve read about. 
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Amazing Facts

Cellular Machines Work Like Cameras, Winches and Turboprops
September 3, 2008
The discovery that cells are filled with molecular motors is one of the major achievements of late 20th-century molecular biology.  Biochemists routinely use the word “motor” when describing cellular processes, because, in fact, machines made of protein actually do use energy to perform work.  Now we have a new hybrid science – biophysics – that […]
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Amazing Facts

How Chromosomes Pack Without Exploding
August 24, 2008
When preparing to divide, a cell has to copy all its DNA accurately and pack it into chromosomes.  A professor at U Chicago told Science Daily this is “like compacting your entire wardrobe into a shoebox.”  The cell has another difficulty in this compaction process, though: DNA, being negatively charged, resists packing.     Eukaryotes […]
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Genetics

Flatlife Has More Genes Than It Needs
August 23, 2008
The genome of a placozoan (“flat animal”) shows more complexity than one would expect for a simple life form.  According to evolutionists, it shows that even a barely-differentiated animal presumably ancestral to complex animals had the genetic toolkit of its more-advanced descendents.     Trichoplax adhaerens is a slimy-looking thing that sticks to aquarium walls.  […]
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Amazing Facts

Membrane Switches Keep Your Brain Humming
August 14, 2008
Tunnels with rotating gates and rocker switches – this sounds like mechanical engineering.  It’s the machinery that helps power your brain, reported scientists from UCLA and the Pasteur Institute.     Their paper in Science described the structure of just one of many kinds of membrane channels.1  Cell membranes are lined with elaborate one-way gates.  […]
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Genetics

Admissions of Ignorance in Evolutionary Theory
August 11, 2008
For a scientific idea some have proclaimed as a fact no longer in need of proof, and as well-established as gravity, Darwin’s theory of evolution still reveals surprising weaknesses when its defenders speak about the details.  Detecting these weaknesses requires tuning out the media hype, and tuning into scientific papers and pro-evolution journals where evolutionary […]
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Cell Biology

Adult Stem Cells Race Ahead; Embryonics Falter
August 7, 2008
Major advances are being made with induced pluripotent stem cells (iPS), stem cells reconstituted from adult tissues, while interest in embryonic stem cells (ES) seems to be drying up.     Both Nature and Science reported advances in iPS technology last week.  Nature reported that the number of factors needed to reconstitute pluripotent stem cells […]
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Genetics

Tree of Life in the Genes? Not Yet
July 23, 2008
Now that we have hundreds of animal genomes in the bank (the GenBank), is Darwin’s tree of life becoming visible?  If the image is present, it is extremely weak, said Michael J. Sanderson of the Department of Ecology and Evolutionary Biology at University of Arizona.  Writing for Science,1 he showed that only a small fraction […]
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