Search found 70 matches

by RobJim
Tue Jun 21, 2005 1:54 am
Forum: General Discussion
Topic: What is Chromatography?
Replies: 4
Views: 5148

Chromatography is a method in which the individual molecule types that make up a liquid or gaseous solution are separated. The way it works is that there are to phases that the solution interacts with; a stationary phase, which doesn't move, and a mobile phase, which flows through or past the statio...
by RobJim
Tue May 03, 2005 8:11 am
Forum: Molecular Biology
Topic: Definition of Information Content of DNA
Replies: 3
Views: 3475

Definition of Information Content of DNA

One of my hobbies is to debate with Creationists about the origin and mechanism of speciation of life. One of their common claims has this basic structure: Information cannot increase without intelligent intervention. I've asked for their definitions of 'information' so I can explore the claim, but ...
by RobJim
Mon Mar 21, 2005 10:50 am
Forum: General Discussion
Topic: Did Jung reject the ID?
Replies: 2
Views: 4203

This seems to be more of a psychology question than a biology one.
by RobJim
Mon Mar 21, 2005 10:47 am
Forum: General Discussion
Topic: the color of protein
Replies: 5
Views: 14598

Color in organic molecules (like proteins) generally means there is a conjugated pi-network in the molecule. The color of this protein could indeed be a useful bit of evidence about what protein it is; however I don't know what your protein is. Unless you have some sort of standard the color won't h...
by RobJim
Sat Mar 05, 2005 1:59 pm
Forum: General Discussion
Topic: dissecting a mouse
Replies: 2
Views: 8020

5. Pick up the dead, split open mouse and make it dance to the amusement of your classmates. Ask the girls to kiss it.

Just kidding of course :)

On the square...
by RobJim
Sat Mar 05, 2005 1:51 pm
Forum: Human Biology
Topic: photoreceptor a cell or a subtance?
Replies: 8
Views: 10148

Your grammar is poor and because of this it's hard to understand what you want to know. According to dictionary.reference.com, a photoreceptor is A nerve ending, cell, or group of cells specialized to sense or receive light. If you look at the word, you can see that it should be anything that receiv...
by RobJim
Sat Mar 05, 2005 1:48 pm
Forum: General Discussion
Topic: Exception to Characteristics of Life.
Replies: 57
Views: 72049

I believe that viruses are not considered alive, as they don't fit the definition of life.
by RobJim
Tue Mar 01, 2005 2:53 am
Forum: Cell Biology
Topic: On Cells and Pumping Hydrogen
Replies: 9
Views: 10348

H- is a proton with two electrons. It's not called a hydrogen ion; it's name is the hydride ion.
by RobJim
Sat Feb 26, 2005 9:48 am
Forum: Ecology
Topic: Ecology
Replies: 5
Views: 9355

Also try using Google to search for [ "organism name" phylum ]. I found the phylum of the Mayfly Nymph in seconds this way.
by RobJim
Sat Feb 26, 2005 9:31 am
Forum: Botany Discussion
Topic: what is a absorbance spectrum?
Replies: 9
Views: 21987

It's basically a chart of the amount of light absorbed at each wavelength of light, I think. Check those websites to make sure ;).
by RobJim
Sat Feb 26, 2005 9:30 am
Forum: Evolution
Topic: Human evolution
Replies: 48
Views: 51429

Evolution occurs when any of these five factors happen: *Mutation *Gene Flow *Genetic Drift *Nonrandom Mating *Natural Selection Humans are exposed to mutagens, so we mutate. Humans do often travel to other parts of the world and breed with people from these other places, so gene flow takes place. G...
by RobJim
Tue Feb 22, 2005 12:34 pm
Forum: Cell Biology
Topic: On Cells and Pumping Hydrogen
Replies: 9
Views: 10348

mithrilhack wrote:I believe that hydrogen ion is an electron which is electricity. I'm thinking electro-gradient. Dunno what the right term for it is.


Hydrogen ions are protons, not electrons.