Biology - January 2007

2007-01-04 04:14:12 · 4 answers · asked by Gina I 1

2007-01-04 04:07:00 · 5 answers · asked by Anonymous

2007-01-04 04:04:09 · 5 answers · asked by InvisibleWar 2

a picture would be greatly appreciated, or even a link to where i could see one.....thanks!!

2007-01-04 03:52:19 · 2 answers · asked by -ToFu- 1

1.What is a gene in its simplest form?
A. a part of a protein
B. a segment of DNA
C. a looped portion of RNA
D. a molecule found in the endoplasmic reticulum

2.If DNA makes RNA, then what does RNA make?
A. DNA
B. RNA
C. proteins
D. new cells

3.Which of the following describes translation?
A. DNA makes RNA.
B. RNA makes proteins.
C. DNA makes proteins.
D. Proteins act in cells

2007-01-04 03:40:03 · 10 answers · asked by Anonymous

What is a buffer and how does it regulate pH?

2007-01-04 02:27:02 · 4 answers · asked by td 2

2007-01-04 01:32:37 · 7 answers · asked by Anonymous

2007-01-04 01:27:08 · 1 answers · asked by Luiz B 3

construct a pedigree to show how a sex-linked disorder may be inherited by daughter.

2007-01-04 01:16:25 · 3 answers · asked by nargis 2

can you think of a reasson why a disorder causing severe illness or death may not appear on the Ychromosome ?

2007-01-04 01:13:29 · 6 answers · asked by nargis 2

draw two labelled diagrams of meiosos showing nondisjunction of the xx homologues to produce gametes that will lead to an xo individual and an xxy individuals .

2007-01-04 01:09:07 · 1 answers · asked by nargis 2

Composition of procaryotic cell wall?

2007-01-04 00:40:32 · 1 answers · asked by are biyi 1

e-mail me at stephaniegardner2001@yahoo.co.uk our
gardnersteph@hotmail.co.uk

2007-01-03 23:42:46 · 13 answers · asked by stephanie g 1

The thiness of a typical bilayer membrane is about 75 A (7.5 nm). If a helical polypeptide with pitch 0.54 nm having 3.6 residues per turn spans the membrane how many amino acids are within the bilayer?

2007-01-03 23:11:01 · 2 answers · asked by charleslk 1

how can you make a poem with nucleus, nucleolus, robosome, cell membrane, cytoskeleton, rough er, smooth er, golgi apparatus, mitochondrion, lysosome, microtubules, and microfilaments?? I need help!!!!!

2007-01-03 22:25:04 · 4 answers · asked by ares2war 1

Epithelial Tissues in Biology

2007-01-03 20:29:17 · 2 answers · asked by amanoginji1989 1

Ok, for school we have to make up an animal that will help humans. It could even be a plant. The best thing i can think of is an animal that will heal wounds with its tears...... but i find that it copies harry potter a bit..... so i need help with thinking of another.

2007-01-03 19:13:56 · 6 answers · asked by bandgeekxgirl 2

2007-01-03 19:08:53 · 13 answers · asked by BEYOUND THE IMAGINATION 1

I've always been on the night clock. I am most alive, alert, and yes AWAKE in the "wee" hours. Let me know if it is SCIENTIFICALLY proven, not just a shared opinion. :D

2007-01-03 18:57:56 · 5 answers · asked by chacha_waha 2

2007-01-03 18:57:44 · 15 answers · asked by Anonymous

2007-01-03 18:52:17 · 3 answers · asked by Anonymous

2007-01-03 18:51:44 · 3 answers · asked by Anonymous

2007-01-03 18:48:57 · 5 answers · asked by Anonymous

2007-01-03 18:43:13 · 3 answers · asked by Anonymous

It seems that where living organisms are concerned, anytime changes, especially in the environment occur, they seem to learn to adapt to any situation even to the extreme. For example there are fishes in the Arctic that developed an Anti-freeze protein so they wouldn't freeze in subzero temperatures! That's just one example in a world littered with countless more! What I would like to know is: are there limits to how living things can evolve? If all the animals and plants on land slowly died would we develop flippers? Or suppose oxygen slowly diminishes, would our body learn to metabolize with nitrogen?

2007-01-03 18:35:16 · 7 answers · asked by Anonymous

2007-01-03 18:25:09 · 4 answers · asked by Anonymous

2007-01-03 17:47:19 · 1 answers · asked by faza4peace 1

I realize that all life has DNA or at least RNA (in the case of sperm and egg cells and possibly even viral structures) but what affect does DNA really have on the human psyche? Why can't a living organism be created by building DNA? Or has this been done?

2007-01-03 17:42:33 · 9 answers · asked by Rockstar 6

heres the question the plant pigment xanthophyll absorns light in the range of 400 and 550 nanometers and reflects all other light. what colors are tissues that contain only xanthophylls? why?

2007-01-03 17:26:37 · 2 answers · asked by Anonymous

and... How does the four requirements for the respiratory system of an oak tree get fulfilled?
the four requirements are (the cell membrane)
1. Must be thin for diffusion of gases.
2. Must be moist for gases to be dissolved in.
3. Must be near a source of oxygen.
4. Must be closely connected to a transport system.
but i still don't understand. :*(

no, i cant ask my biology teacher this. (he said not to ask)

2007-01-03 17:12:57 · 2 answers · asked by ~*Pr1nc355*~ 2