Correction on Re: How animals in the hydrothermal vent can live with the high temperature.
vbow6161 at ou.edu
Wed Mar 13 22:44:48 EST 2002
Oops! Sorry- I just got done from taking my Biochemistry midterm, and I
crammed all night for it ( I was too tired to drive so I walked home from my
Guanine and Cytosine are nucleic acids, not amino acids, so they only
affect the stability of the DNA.
Hemophilic does not mean heat loving, thermophilic does- I think my spell
checker did that one.
I'm really sorry! I should not handle heavy machinery or answer email when
I am so tired!
"LIzz Hancock" <vbow6161 at ou.edu> wrote in message
news:sIPj8.2552$c4.101880207 at ounews.ou.edu...
> Their DNA/RNA/Proteins have a higher GC ratio. This means that the amino
> acids Guanine and Cytosine are present in much greater numbers. How does
> this help? It helps because these two amino acids, which bond to each
> other, have 3 bonds between them--this means it's much stronger a bond, so
> they are able to withstand much higher temperatures (i.e., their proteins
> don't fall apart). The most hemophilic (heat loving) archae (primitive
> bacteria) I can think of can live at 110 degrees Celsius.
> These little buggers also fight crime too! How you ask? Their heat
> tolerant enzymes are used in the crime lab procedure called PCR. This
> process takes a very small piece of DNA, too small to test, and makes tons
> of identical copies--enough for the police to test it.
> Lizz Hancock
> Microbiology Senior
> "Remond" <cpc272688 at yahoo.com> wrote in message
> news:890c20f2.0203090333.397c9a64 at posting.google.com...
> > When someone know that the temperature in a hydrothermal vent can
> > reach 400 degrees Celsius, he will think that this place(hydrothermal
> > vent) is not a good place for life. But after many years of search,
> > many scientists prove the existence of many forms of life live around
> > these vents by using the submersible Alvin. The question is: How these
> > forms of life can stand with this extreme temperature?
> > Thanks...
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