Search found 5 matches

by GeneticsLover
Thu Nov 22, 2007 2:15 am
Forum: Cell Biology
Topic: Which is the correct option
Replies: 8
Views: 4769

But what does along the concentration gradient mean?
by GeneticsLover
Wed Nov 21, 2007 8:40 pm
Forum: Microbiology
Topic: O.D. and cell number
Replies: 9
Views: 54045

I'd have to agree that a plate dilution is very helpful. You can get a good idea of how many becteria per m/l you have and then relate that to a 1:1 dilution for your OD, makes for a great standard curve.
by GeneticsLover
Wed Nov 21, 2007 8:29 pm
Forum: Cell Biology
Topic: Question
Replies: 5
Views: 2401

wow, this question is from months ago. But, I must know,was the answer chromosome, or maybe allele??
by GeneticsLover
Wed Nov 21, 2007 8:25 pm
Forum: Cell Biology
Topic: Which is the correct option
Replies: 8
Views: 4769

Hmmm. I know ATP is required to move a substance against the concentration gradient. I know it isn't necessary for the movement of substances down the concentration gradient. My question is "What does your book mean by along?" If it means moving a substance from one place to another withou...
by GeneticsLover
Wed Nov 21, 2007 4:06 am
Forum: Evolution
Topic: Another creationist thread
Replies: 43
Views: 61002

fossilized negative mutations

Okay, why on earth do you assume that negative mutations absolutely must be evident in the fossil record to support their existence? Think about this: maybe you were born with a genetic heart defect due to a mutation that caused your death at a young age and you were buried in prime conditions for f...