Search found 62 matches

by Jammerz
Sat Feb 02, 2008 12:58 am
Forum: Zoology Discussion
Topic: 6,700 mi/hr
Replies: 16
Views: 7830

Sounds like somebody needs to buy a "fake-o-meter".
by Jammerz
Sat Feb 02, 2008 12:42 am
Forum: Physiology
Topic: negative/positive feedback loops
Replies: 12
Views: 99405

Re: negative/positive feedback loops

Nearly every system in the body is a negative feedback loop; there are very few positive feedback loops in the body, and one example of positive feedback is childbirth.
by Jammerz
Fri Jan 25, 2008 5:42 pm
Forum: Genetics
Topic: glow in the dark cats
Replies: 2
Views: 1750

Besides the obvious ethical issues, what exactly is "the perfect genetic sample"? Also, there are already more than enough orphans up for adoption; why would you need to "clone" people specifically for that purpose? And finally, "cloning" isn't as easy as getting some D...
by Jammerz
Fri Jan 25, 2008 5:36 pm
Forum: Human Biology
Topic: muscles, how do they work?
Replies: 4
Views: 2520

There's a lot more to cells than just "hydrocarbons", and your question is extremely broad. Cells are made of (primarily) protein, carbohydrates and lipids, which are in turn made of carbon, hydrogen, oxygen, nitrogen, phosphorous, calcium, and a number of other elements. There are many, m...
by Jammerz
Fri Jan 25, 2008 4:32 am
Forum: General Discussion
Topic: Biology, 7th edition, 2005 , Campbell and Reece
Replies: 8
Views: 21610

I used it and thought it was an excellent book.
by Jammerz
Wed Dec 12, 2007 6:48 am
Forum: Human Biology
Topic: drink type 1 diabetic's blood
Replies: 9
Views: 7332

Keep a hefty supply of garlic and crosses; you never know what could happen, so always keep protection with you. :wink:
by Jammerz
Sun Nov 11, 2007 8:36 am
Forum: Genetics
Topic: Colchicine
Replies: 8
Views: 15951

There are other microtubule depolymerizing drugs similar to colchicine, like nocodazole and colcemid , that bind free tubulin in a cell and prevent them from adding onto microtubules. I also know of a drug called Brefeldin that interferes with anterograde transport from the endoplasmic reticulum to ...
by Jammerz
Tue Oct 30, 2007 7:07 am
Forum: Botany Discussion
Topic: Electrons in photosystem II
Replies: 6
Views: 16283

First off, you have the order mixed up a little. It's the opposite of how they're numbered; electrons move from PSII to PSI, not the other way around. Counterintuitive, I know. Anyway, these electrons come from water. At PSII, a molecule of water is split; one oxygen, two hydrogens; one electron is ...
by Jammerz
Tue Oct 30, 2007 6:54 am
Forum: Zoology Discussion
Topic: Need help identifying the following animals
Replies: 14
Views: 13634

Aye, I'd definitely agree it's a monotreme of some sort.

edit: the description also says "mixed up appearance" though, which, like mith said, makes me think "platypus".
by Jammerz
Mon Oct 29, 2007 9:54 pm
Forum: Zoology Discussion
Topic: Need help identifying the following animals
Replies: 14
Views: 13634

Re: Need help identifying the following animals

2. You would have to go to Asia to see one of these but chances are you don't really want to, at least not out in the wild. It's the biggest of its of kind. If you survive the bite the infection will probably do you in anyway. This one has to be the komodo dragon. 4. Not many species belong to this...
by Jammerz
Thu Oct 25, 2007 4:47 am
Forum: Genetics
Topic: barr body and colorblindess
Replies: 3
Views: 3533

If there are two or more X chromosomes, one of them will be inactivated and will be seen as a Barr body... a normal male should have genotype XY, therefore, NO barr bodies. An abnormal male with Klinefelter's syndrome will have genotype XXY, accounting for the presence of a barr body. If the son is ...
by Jammerz
Mon Oct 22, 2007 5:26 am
Forum: Cell Biology
Topic: magnification electron microscope
Replies: 2
Views: 2285

According to wikipedia, the magnifying power of a TEM is about 50 million times.
http://en.wikipedia.org/wiki/Electron_microscope

At these magnifications however, I think the more important information to know about electron microscopes is resolution... you can read more about the resolution of EMs here:
http://www.ncbi.nlm.nih.gov/books/bv.fc ... .1715#1749