Correction on Re: How animals in the hydrothermal vent can live with the high temperature.

LIzz Hancock 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...
> >

More information about the Microbio mailing list

Send comments to us at biosci-help [At] net.bio.net