Cell Biology

hey guys,

Ok so I'm required to come up with a definition for optimum conditions; this is in the context of the function of enzymes. I was going to refer to the temperature at which there is the fastest rate of metabolic reactions due to the enzymes operating best at that particular temperature.

Is that all I have to consider with regard to this definition!!

Would seriously appreciate some help, thx all!

Hello everyone!

CAn anyone please explain to me the 'Law of Segregation' and the 'Law of Independent Assortment'

Thank you,
Shweta Prakash.

I am interested in doing a report on cell/human aging. I have had a bit of trouble finding some information about this topic on the web. Can somebody perhaps point me to some sites which may be of interest to me?

thanks in advance!
-L

What are the advantages and harmful effects of Protozoa?

Hi,
I am interested in transfecting a human cell line (U20s or MCF7) that is arrested at G1,S,and G2.
have you ever done this successfully?
how did you arrest the cells?
how did you transfect?
what was your efficiency compared to normally growing cells.
I am grateful for your time, this is crucial for my project,
Noam Diamant.

Hi im having serious problems with answering these questions below and i was wondering if anyone can help me please :cry: its driving me mad all the work i have done is totally wrong as iv been told by my teacher and he's no help at all, i have 2 days in which to do it and dont hav a clue some one plz help me.

QUESTION 1: Using a well labelled diagram show the positions that the DNA synthesis inhibitor hydroxyurea and the mitotic spindle inhibitor colchicine may arrest the cell cycle.

QUESTION 2: Explain how turners syndrome may arise in humans by the use of an annotated flow diagram of meiotic divisions.

How many chromasones do sloths have? In science we are working on DNA, and chromasones and that type of things. So any way, i read about how many chromasones some animals have, but it did not have sloths! So, i was wondering if you knew.
Thanks,
Slothlover

what does a external membrane surface do?

How is Hydrogen Peroxide made in the body and why must it be broken down?

could someone tell me if bacterial membrane has folds??