Search found 170 matches

by Darwin420
Fri Oct 16, 2009 9:16 pm
Forum: Molecular Biology
Topic: DNA polymerase I question
Replies: 2
Views: 1156

DNA polymerase I question

Hey guys...I am really stuck on this problem question...wondering if anyone could help me out. Is make of RNA primers (by primase), which have to be removed and replaced with dNTP's (by DNA polymerase I) actually wasteful and energetically inefficient process? I would say no considering how else is ...
by Darwin420
Fri Oct 09, 2009 6:36 pm
Forum: Cell Biology
Topic: another mutations question
Replies: 3
Views: 1067

What a horribly worded question. Fail.
by Darwin420
Sun Sep 27, 2009 8:17 pm
Forum: Microbiology
Topic: How long do a virus live?
Replies: 19
Views: 14818

I feel confident in saying yes.
by Darwin420
Sun Sep 27, 2009 2:52 pm
Forum: Microbiology
Topic: How long do a virus live?
Replies: 19
Views: 14818

Mith: think out side of the box....I know a textbook will tell you that viruses aren't considered life....but that is just B.S., Viruses are just a different form of life....but nevertheless, they are living. For example when Robert Hooke came up with a template stating that all living organisms con...
by Darwin420
Thu Sep 24, 2009 3:47 pm
Forum: Molecular Biology
Topic: How does high salt conc. influence denaturation kinetics
Replies: 4
Views: 5442

But wait, using LOW SALT concentrations is what scientist use to denature DNA. If you have high salt concentrations you will most likely have an unstable z form DNA.

sorry, I am just learning this stuff as well...little rusty.
by Darwin420
Thu Sep 24, 2009 3:37 pm
Forum: Molecular Biology
Topic: Biological Molecules and Cell Reactions Question
Replies: 9
Views: 4644

yea...I realized that after. It is a stupid question.

but in that case, it is protien and DNA, RNA.
by Darwin420
Thu Sep 24, 2009 3:35 pm
Forum: Molecular Biology
Topic: How does high salt conc. influence denaturation kinetics
Replies: 4
Views: 5442

yes...and I described that. the 3' and 5' repel each other, thus they unfold.

Look it up in a text.
by Darwin420
Thu Sep 24, 2009 4:37 am
Forum: Molecular Biology
Topic: How are Nitrogenous Bases attracted to each other?
Replies: 2
Views: 2416

-Hydrogen bonding and also hydrophobic interactions between bases. The nitrogenous bases pair mainly by hydrogen bonding but since DNA is in a high water concentration in its native state the bases also show a hydrophobic tendency and move closer to eachother and away from the solution, which causes...
by Darwin420
Thu Sep 24, 2009 4:04 am
Forum: Molecular Biology
Topic: How does high salt conc. influence denaturation kinetics
Replies: 4
Views: 5442

Salts can change the charge of the phosphate backbone by donating electrons or possibly attracting an Oxygen atom from the phosphate ion, causing the charge to chage.. which could cause the 5' and 3' end to repel eachother.
by Darwin420
Thu Sep 24, 2009 3:51 am
Forum: Molecular Biology
Topic: Biological Molecules and Cell Reactions Question
Replies: 9
Views: 4644

This is a really odd question. In fact, all of them are needed, they are the 4 macromolecules that all life have. If you don't have nucleic acids than you don't have DNA, if you don't have DNA you don't have proteins and so on. These are all needed for a cell to carry out a function. This is a weird...
by Darwin420
Thu Apr 23, 2009 3:11 pm
Forum: Cell Biology
Topic: Krebs Cycle
Replies: 6
Views: 11645

no prob..I see I started talking about plants..don't mind that, that was my mind fixated on plant bio because I had a plant bio test that day lol.
by Darwin420
Sun Apr 19, 2009 10:53 pm
Forum: Cell Biology
Topic: In what solution do cells "swim" in..
Replies: 7
Views: 3454

Sorry, it is just this site offers NO interesting topics... it is either young kids asking text book questions or people regurgitating text book material!! What happened to having discussions that involved thinking outside of the box and developing OUR own theories? I try to make posts to invoke tho...