Biology - March 2007

that's pretty much the question. if you go to the aquarium, you'll see most salt water fish are colorful why fresh water fish are darker, duller, usually have dark, single colors.

2007-03-14 03:39:48 · 8 answers · asked by Anonymous

and what structures are primarily responsible for detecting any change?

2007-03-14 03:24:20 · 6 answers · asked by Anonymous

Does anyone know how to check the quality of the product after a PCR?

As we know TAQ polymerase can make mistake. So, how do we check whether has the Polymerase made an error in between? Also how to prevent the errors from happening. Please help asap.

2007-03-14 03:13:37 · 4 answers · asked by PIPI B 4

Are they so unsure of their religious beliefs that they have to keep defending them? Or are they trying to play "gotcha" with their myths for which there is no evidence whatsoever?

2007-03-14 02:57:14 · 7 answers · asked by Joan H 6

There is now no way for a beneficial mutation to spread throughout the entire population of the planet, therefore there can be no more meaningful evolution of the human race. Alternatively, is it possible given a few more million years for several distinct human species to evolve. Presumably this would have happened if groups on different continents had remained separated.

2007-03-14 02:57:02 · 14 answers · asked by andrew g 3

5. Of what advantage is the formation of many more sperm than egg cells?

6. Explain the difference between metamorphosis and parthenogenesis.

2007-03-14 02:39:11 · 1 answers · asked by me1026 1

i want everyone to be monkeys again!!!...it must`ve been so much easier and fun just slinging your muck round and climbing trees

2007-03-14 02:33:55 · 12 answers · asked by SARNIE 3

They say that you never forget anything you hear/see, even though you may not be able to bring it into the forfront of your mind, it's still in there somewhere. So is there a limit to how much your brain can remember?

2007-03-14 02:24:18 · 16 answers · asked by Anonymous

in a question i asked before ( http://in.answers.yahoo.com/question/index;_ylt=AubO_oJJCuBiApZDm_VvF.OQHQx.?qid=20070313030559AA6zj1M ), many people said that atoms are not living organisms even though living things are made of atoms,its just the way atoms are organised that creates a living thing. so does that mean that if we are able to arrange atoms in a particular way then we can create life??

2007-03-14 01:28:40 · 10 answers · asked by Kelrec 4

if u have any suggestion i want ur answer as soon as possible

2007-03-14 00:54:10 · 4 answers · asked by izy 1

2007-03-14 00:43:30 · 5 answers · asked by Russell 3

2007-03-14 00:22:36 · 5 answers · asked by Anonymous

I need proof, so give me the site you got the information from?

2007-03-13 23:58:17 · 2 answers · asked by Anonymous

is alchoholism is caused due to genes

2007-03-13 22:29:21 · 3 answers · asked by Anonymous

please tell me the definition....its for my biology research!

2007-03-13 22:25:41 · 4 answers · asked by Alfie_mcg 1

2007-03-13 21:45:12 · 1 answers · asked by CLARE S 2

So my practical tomorrow is going to be about Deducing the Water Potential of Plant Tissues. With potato strips soaked in different concentration of salt solutions, we are suppose to plot a graph (percentage change in length of potato strips against the concentration of solution which is 0.2mol/dm3, 0.4, 0.6 & 0.8) and with the graph, deduce the water potential (in %) of the potato cells. Any clue how it shall be done?

2007-03-13 21:43:08 · 2 answers · asked by Anonymous

2007-03-13 21:10:55 · 2 answers · asked by moustafa 1

2007-03-13 21:06:55 · 9 answers · asked by fsmaher 1

...."ruby" colored eyes instead of red.

Red Eyes (male)77 (female)151
"Ruby Eyes" (male)75 (female) 0

a) Are the ruby eyes recessive or dominant?

b) How do the results of the cross indicate that ruby eye color is sex linked?

c) Using x^R for the dominant allele and x^r for the recessive allele, write the genotyps of the two parents.

d) Do the female offspring all have the genotype? List all the likely genotypes of female offspring.

e) List the genotype of the red eyed males and ruby eyed males.

2007-03-13 20:48:37 · 3 answers · asked by Anonymous

2007-03-13 20:43:54 · 24 answers · asked by guonianle g 1

2007-03-13 19:14:48 · 2 answers · asked by jacko 1

If protein synthesis could be done under in vitro conditions (in a test tube, and in this case containing amino acids) using m-RNA from fish muscle cells, t-RNAs from frog eggs, and ribosomes from human liver cells, what product would result? (3 pts)

These are the options:

a. Protein that was a mixture representing human, frog, and fish.
b. Protein from human only
c. Protein from frog only
d. Protein from fish only
e. Protein from human and fish but not from frogs

NEED ANSWER ASAP

2007-03-13 18:59:08 · 3 answers · asked by hanna a 2

What was the cellular mutation that caused this. Is it known yet?

2007-03-13 18:52:06 · 3 answers · asked by beboe007 1

I already know the process of mitosis. I also already know that mitosis is important to help repair new cells that have died.....but why does the cells in mitosis have to be identical daughter cells? what is the importance of daughter cells? if the cells aren't identical, what happens and what is this called?

2007-03-13 18:38:15 · 5 answers · asked by pumpkin pie 2

When solving for the F2, how do you know which two genes from the F1 to combine?

for example: solve for the F2 when crossing a heterozygous tall with a homozygous short pea plant. name the phenotype and genotype.

2007-03-13 18:18:10 · 4 answers · asked by Anonymous

2007-03-13 18:12:10 · 2 answers · asked by Pammy 1

i need to know how the biological distinction of an organism is affected by its environment? ASAP

2007-03-13 18:07:02 · 3 answers · asked by scyther g 1

Does anyone know how we came up with the conclusion that something taught can not have an influence on genes? If something is taught for thousands of years can it not have an effect on offspring at all? My example would be religion. Is it impossible for religion to effect the offspring's thought process and gullibility. Are acquired traits completely ruled out of the picture when passing down genes to offspring?

2007-03-13 17:57:01 · 4 answers · asked by Alan M 1

Why do people get so tripped up on the terminology?

Fetus isn't a dirty word, it literally means "unborn baby." It's just distinguishing a free-body kicking, screaming infant from a baby still in the womb. What's the big deal over not referring to an unborn child by the appropriate term?

2007-03-13 17:56:05 · 6 answers · asked by Allo 4