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Comment: Re:hmmm (Score 1) 461

by stei7766 (#29802127) Attached to: Observing Evolution Over 40,000 Generations

Actually, you're on the right track.

For example, if you look at the triplet codons which code for amino acids, you can see that (in general) the more detrimental a mutation (such as positively charged residue to negatively charged), the more the codon has to be changed.

Check out http://en.wikipedia.org/wiki/Genetic_code

So I guess one can say that there is a mechanism in place to minimize the negative effects of random mutation. The mutations themselves are still random, however.

Obviously a great deal of nuance was left out of this and my previous comment. Genetics is big, and really can't be done justice in a /. thread.

Comment: Re:untrue (Score 1) 461

by stei7766 (#29802053) Attached to: Observing Evolution Over 40,000 Generations

Epigenetics, in my mind, is something different. To quote from your link:
"However, there is no change in the underlying DNA sequence of the organism"

It is simply control of which genes are expressed, not control of which genes are present in the genetic code.

Though, my definition of mutation could be completely off? Please correct me if so.

Robotics

Where's Waldo (the Submarine)? 107

Posted by timothy
from the keep-an-eye-out dept.
stoolpigeon writes "Scientists on Florida's Gulf Coast are trying to find an underwater robot that has mysteriously vanished. The robot from the Mote Marine Laboratory in Sarasota has been missing since Monday. The robot, which cost about $100,000, was equipped with a detector to find red tide, a toxic algae bloom. The detector was valued at another $30,000. Scientists aren't sure what happened to the robot, which is nicknamed Waldo."

Comment: Re:Analogy (Score 1) 256

by stei7766 (#29310603) Attached to: "Overwhelming" Evidence For Magnetic Monopoles

I dunno about a car analogy, but I always think of magnetic monopoles like a point charge. You can have an object be either positively or negatively charged. Get two near each other and you have a dipole, which is like a normal magnet.
What you would do with one I have no clue, but I bet there would be a fleet of magnet researches chomping at the bit to find something.

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