Search found 6 matches

by ACyanNight
Thu Jan 20, 2011 1:09 am
Forum: Molecular Biology
Topic: How ATP works
Replies: 5
Views: 7659

Re: How ATP works

I think I understand it a little bit better, but, thinking about it again, changing the conformation of a protein requires some sort of power source, still. Unless that's what you meant by stimulus? How would the binding of a cofactor or ATP hydrolysis supply the energy needed for the conformation c...
by ACyanNight
Sat Jan 15, 2011 8:44 pm
Forum: Molecular Biology
Topic: How ATP works
Replies: 5
Views: 7659

How ATP works

Hello! Sorry I'm asking such a basic question, but I can't seem to find the answer on my own. All of the books I've read say that ATP provides the energy to power the cell. I can grasp that as an exothermic reaction, it can be coupled with endothermic reactions to make it exothermic overall, however...
by ACyanNight
Sun Aug 29, 2010 9:51 pm
Forum: Genetics
Topic: I think that this question is easy, but I can not answer
Replies: 8
Views: 5033

Re: I think that this question is easy, but I can not answer

Why do you have to reverse it?
by ACyanNight
Sun Aug 29, 2010 9:48 pm
Forum: Molecular Biology
Topic: Transcription
Replies: 4
Views: 2312

Re: Transcription

Hm.... Say you have a strand of DNA that goes

ATGCAGTCGACCGAT
TACGTCAGCTGGCTA

So, the two possible mRNA's would be

UACGUCAGCUGGCUA

AUGCAGUCGACCGAU

The sequences would obviously result in different amino acid sequences, right? So, would both create working proteins? Or would only one?
by ACyanNight
Sun Aug 29, 2010 7:35 pm
Forum: Human Biology
Topic: Blood Clotting
Replies: 3
Views: 5678

Blood Clotting

Does anyone know if blood will clot when it's stagnant, but without the aid of clotting factors? For example, if you accidentally cut yourself, and blood drops onto the floor, will it clot even though there aren't clotting factors? Or are the clotting factors released quickly enough that they will a...
by ACyanNight
Sun Aug 29, 2010 7:21 pm
Forum: Molecular Biology
Topic: Transcription
Replies: 4
Views: 2312

Transcription

Since RNA is transcribed by complementary pair matching, and DNA is double stranded, does that mean that only one side is used each time? Since the other side would result in a different sequence of bases? If so, how does the RNA polymerase know which side, and does that mean that only one strand is...