Search found 6 matches

by Z0rr0
Mon May 04, 2009 7:49 am
Forum: Genetics
Topic: Uses for the PCR technique?
Replies: 4
Views: 35553

Hmmm, I'm thinking of saying that a gene could be replicated numerous times and exposed to different viruses to see if the gene is naturally immune to any. But I'm not sure if that can go anywhere. >.<
by Z0rr0
Mon May 04, 2009 7:46 am
Forum: Genetics
Topic: Uses for the PCR technique?
Replies: 4
Views: 35553

Uses for the PCR technique?

Hello. I have to list three uses for the PCR technique. One has to fall under forensic science, one has to fall under medicine, and one has to fall under scientific research. I'm struggling with some, but I am making an effort. Would these reasons be alright to list? Forensic Science: Making copies ...
by Z0rr0
Sun Mar 15, 2009 11:24 am
Forum: Cell Biology
Topic: Need help with macromolecules;
Replies: 1
Views: 2054

Need help with macromolecules;

Q5. b) Describe 2 features of macromolecules that enable them to be used as energy reserves within living cells.

I'm at a blank. Could somebody help me please? I've tried searching but I can't find an answer.
by Z0rr0
Wed Mar 04, 2009 10:37 am
Forum: Cell Biology
Topic: Need help with Genes/DNA;
Replies: 2
Views: 2400

Need help with Genes/DNA;

I'm stuck on three questions. I've written an answer for each but I don't know if they are correct. Q3. b) Describe the structure and function of a gene. A gene is a section of a DNA strand which carries instructions for a specific function. Genes hold information to build and maintain cells. Genes ...
by Z0rr0
Sun Feb 15, 2009 10:45 am
Forum: Cell Biology
Topic: Chemical composition?
Replies: 2
Views: 4762

Chemical composition?

We have to explain the "chemical composition" of some cell structures. Here's what I have so far; Cytoplasm- Water (H20)? Cell wall- Protein molecules? Nucleus- Nucleic acids? Cell membrane- Also protein molecules? I'm not having much luck with the internet, as it's fairly slow and most of...
by Z0rr0
Mon Feb 09, 2009 8:52 am
Forum: Cell Biology
Topic: Need help with two questions; (cells, & the cytoplasm)
Replies: 5
Views: 3140

Need help with two questions; (cells, & the cytoplasm)

Q6. Explain why it is necessary for even simple cells to contain several hundred genes. I'm at a blank here. (Note, Q7 is to do with cytoplasms.) Q7. b) Of which type of chemical compound are they made? I think it's protein molecules, but are protein molecules classified as a chemical compound? Do I...