Search found 30 matches

by Casey
Thu Sep 11, 2008 8:55 pm
Forum: Cell Biology
Topic: Cell Structures
Replies: 13
Views: 12017

So if the radius doubles, the surface area increases by x4? then the volume increases by x8?
by Casey
Thu Sep 11, 2008 8:31 pm
Forum: Genetics
Topic: How do new alleles enter a population?
Replies: 4
Views: 14928

Cool thanks! Also the process of meiosis that helps with variation, is that simply crossing over?
by Casey
Thu Sep 11, 2008 7:51 pm
Forum: Cell Biology
Topic: Cell Structures
Replies: 13
Views: 12017

Re: Cell Structures

Thanks! That page helped a lot! :) But I still can't find how the surface area of a cell changes as a cell grows. Is it simply that as the cell gets bigger the surface area will get bigger too?
by Casey
Thu Sep 11, 2008 3:35 am
Forum: Cell Biology
Topic: Cell Structures
Replies: 13
Views: 12017

Cell Structures

Just looking through some exam papers and got a fright! Some of this stuff I havn't a clue about and can't find in my txt book! This question has come up in 2 of the papers I have looked through, it askes how the surface area of a cell changes as a cell grows? Also Cell Membranes. Things like what i...
by Casey
Thu Sep 11, 2008 3:04 am
Forum: Genetics
Topic: How do new alleles enter a population?
Replies: 4
Views: 14928

How do new alleles enter a population?

I was going through past exam papers and came across this question

Explain how new alleles can enter and become established in a population.

Is it because of mutations?
by Casey
Thu Sep 11, 2008 3:02 am
Forum: Human Biology
Topic: In Vitro Fertilization (IVF)
Replies: 9
Views: 11091

In Vitro Fertilization (IVF)

Any suggestions for implications of IVF? Things like, infertile people can now have babies, same sex couples can produce a baby, any implications like that