Search found 17 matches

by Miss_Me
Mon May 14, 2007 4:46 pm
Forum: General Discussion
Topic: Labrithodont
Replies: 4
Views: 2321

Labrithodont

Does anyone know what this word means?? I read it somewhere but can't find the meaning.

Word: LABRITHODONT

i think its to do with animals

Asap reply would be great.. thanks!!
by Miss_Me
Mon Apr 02, 2007 1:18 pm
Forum: Molecular Biology
Topic: pH
Replies: 1
Views: 1214

pH

Hi. I need some help with these questions. They're lil confusing me and am not sure how to tackle them. Thanks in advance! 0.01g of lysine, 0.01g of histidine, 0.01g of aspartic acid were weighed and added to a single volume of 10ml of water. The pH of the amino acid mixture is likely to have been.....
by Miss_Me
Tue Mar 06, 2007 10:09 am
Forum: Molecular Biology
Topic: Protein precipitation
Replies: 4
Views: 10744

yes, barium hydroxide would be used to precipitate the protein. Would i be correct in saying that if i used each of these solutions separately (in different test tubes) in order to precipitate the protein then if i wanted recover the protein back then it would be easierst to fully recover the protei...
by Miss_Me
Mon Mar 05, 2007 2:13 pm
Forum: Microbiology
Topic: How many bacteria?
Replies: 2
Views: 2385

How many bacteria?

I was wondering, if a bacteria organism divides once every 20 minutes, how long would it take to produce 2,000,000 (or 2 x 10^6) bacteria cells? I'm confused on how i'd work this out because i'm getting a sense of there's too many numbers to handle, as each cell divides in 2 every 20 minutes. please...
by Miss_Me
Mon Mar 05, 2007 11:03 am
Forum: Molecular Biology
Topic: Protein precipitation
Replies: 4
Views: 10744

Thanks. But after i put up the question, i went back to working it out. And so i came up with this: "Barium hydroxide would be a possible method to recover precipitated proteins because there would be a chemical reaction with the proteins as aDsorption would occur on to the precipitate" aD...
by Miss_Me
Sun Mar 04, 2007 4:52 pm
Forum: Molecular Biology
Topic: Protein precipitation
Replies: 4
Views: 10744

Protein precipitation

Hi. Can someone help me out here please! Which is the best method to recover a precipitated protein back into its normally folded state? The following solutions were used: -a- 95% Ethanol -b- 25% Ammonium sulphate -c- Solid ammonium sulphate -d- 5% Trichloracetic acid -e-10%Perchloracetic acid -f- 2...
by Miss_Me
Tue Feb 27, 2007 7:24 pm
Forum: Molecular Biology
Topic: pH, pKa
Replies: 1
Views: 4561

pH, pKa

Hi. Could someone help me out here? I've been trying to answer this question for the past week or two and I don't seem to be getting very far. As it is related to chemistry (biochemistry module!), it makes it twice as difficult for me as I'm not very good at chemistry! Thanks in advance This is the ...
by Miss_Me
Tue Jan 30, 2007 10:26 am
Forum: Molecular Biology
Topic: Molar Extinction Coefficient
Replies: 4
Views: 83456

Molar Extinction Coefficient

Hi. Please can someone help me here, as I am confused and I don't want to end up more confused! Thanks in advance! The extinction coefficient is present in the beer-lambert law (A=ECL). However, how would I calculate the extinction coefficient from a graph where concentration is on the x-axis and op...
by Miss_Me
Wed Jan 10, 2007 3:52 pm
Forum: Genetics
Topic: Vertically inherited trait.
Replies: 3
Views: 2349

Vertically inherited trait.

I'm a little confused in the way to answer this question. Can someone help me please? Both X-linked dominant and autosomal dominant traits are inherited vertically in families. What 4 characteristics might you look for that would help you distinguish between X linked dominant and autosomal dominant ...
by Miss_Me
Sun Jan 07, 2007 11:33 am
Forum: Genetics
Topic: best books in genetics
Replies: 7
Views: 19968

I have "Concepts of Genetics" by William S. Klug (8th Edition). The book has proved to be very useful when it came to doing my assignments as it had a lot information in there relating to my work. But for revising, I wouldn't recommend it. It's o-k-a-y for revising but thats about it. hope...
by Miss_Me
Sat Jan 06, 2007 5:40 pm
Forum: Genetics
Topic: Colchicine
Replies: 8
Views: 16673

Colchicine

Colchicine is a chemical which has an influence on cell division by obstructing the production of spindles and so chromosomes cannot move to the opposite poles. I would like to know if there are any other chemicals present that have the same effect as Colchicine? Also Is there another chemical which...
by Miss_Me
Fri Jan 05, 2007 6:52 pm
Forum: Genetics
Topic: Gamma Radiation
Replies: 5
Views: 3615

Gamma Radiation

Hi. Does anyone know of any books or websites where i can find some detailed information of Gamma radiation. Books/websites on Gamma Radiation and its resulting effects of mutations would also be helpful. I've tried looking through some books i have and have been on a few websites, but the informati...