Biology - April 2007

2007-04-03 03:51:51 · 2 answers · asked by billgersitz 1

2007-04-03 03:23:11 · 5 answers · asked by d 2

Some people say pigs, dolphins and chimpanzees are more intelligent than us. Personally I agree. Some humans are pretty dumb. I want a reason for your answer too!

2007-04-03 03:22:30 · 15 answers · asked by Anonymous

need this answer ASAP!!

2007-04-03 02:50:23 · 15 answers · asked by Joseph DeLong 1

just like to now what your opinion on this is

2007-04-02 22:56:09 · 5 answers · asked by Anonymous

NOT a homework question. Just part of an answer to another question of mine. So sensible answers appreciated :-)

2007-04-02 22:37:46 · 1 answers · asked by Part Time Cynic 7

if a substitutions mutation accured in rna what would happen ?

2007-04-02 22:28:02 · 2 answers · asked by sambeker70 1

hi... i'm having some trouble with biology homework.

For a trait with intermediate inheritance, what is the phenotypic ratio for f2 off spring of a monohybrid cross? How is that different from a simple dominant-recsesive cross?


for the phenotypic ratio for f2 offspring of a monohybrid cross i got 1:2:1.. is that correct?
now i just need to know.. how is that different from a simple dominant-recessive cross

2007-04-02 21:08:55 · 4 answers · asked by cocomademoiselle 5

a slate-gray color called blue, and bb produces splashed white. A second gene controls comb shape, with the dominant gene R producing a rose comb and r producing a single comb. A pure-breeding black chicken with a rose comb was mated to a splashed white chicken with a single comb, and the F2 generation was produced. What fraction of the F2 offspring will be black with rose comb?

a. 9/16
b. 3/8
c. 3/16
d. 1/8
e. 1/16

thanks in advance!

2007-04-02 20:26:47 · 1 answers · asked by Anonymous

I was unsure as to the catagory in which I should place this question.

2007-04-02 17:53:34 · 7 answers · asked by sculptorchic 2

Biological siblings, that is.

2007-04-02 16:33:15 · 7 answers · asked by Anonymous

At least a dozen or so steps in the sequence.

2007-04-02 15:33:30 · 4 answers · asked by skipjack 2

2007-04-02 14:34:59 · 10 answers · asked by Marko 2

I was watching a program on technology on The Discovery Channel yesterday. They predicted that in the near future, we may be able to upload our brian content onto a computer cheating death. We will then donwload the content into a human made body. Do you think this will be possible? How long would it take to make it possible? Wouldn't the world become over populated with so many births and no deaths.

2007-04-02 14:18:49 · 8 answers · asked by Anonymous

2007-04-02 14:02:35 · 3 answers · asked by silvia p 1

I seems common to find that living organisms tend to have certain things (such as organs or tissues) that don't seem to be useful and their existance can only be explained by evolution (that these things were once useful for an ancestor).

Strange things like why men have nipples when they don't feed mild, birds with wings but still don't fly, ....etc.

Are there more examples. I also want to listen to if someone disagrees with my examples.

2007-04-02 13:55:53 · 6 answers · asked by Max D 3

a good site with the internal organs of a praying mantis? I'm also looking for a visual of their range?

thanks!

2007-04-02 13:35:59 · 1 answers · asked by miki2010vln2 2

I was making some autostereograms, and my friend was getting frustrated because he couldn't see the 3D images in them. We spent a while trying to get his eyes to unfocus so he could merge the different points together and focus to form the image. When we finally got his eyes to do that, he noted that he didn't see a 3D image. I pulled up some stereo pairs(two images taken from slightly different angles which, when merged together, give the illusion of depth). He told me he always hated those because he couldn't see the difference between the 3D image and the originals. He says that if he closes one eye, it looks the same as having both eyes open(no depth). He says the only reason he knows how far away I am from him is because he knows how big I am. Both of his eyes work individually, and when he looks through both eyes at once, he only sees one image, but is it possible that his brain doesn't interpret the images together to perceive depth? Feel free to answer as deeply as possible.

2007-04-02 13:31:05 · 7 answers · asked by voltzart 1

True or False? Every cell in your body contains the same organelles and same amounts of these organelles.

2007-04-02 13:00:43 · 11 answers · asked by neglect 1

2007-04-02 12:50:41 · 2 answers · asked by Anonymous

2007-04-02 12:48:18 · 2 answers · asked by Two Headed Man 1

If nondisjunction of the two X chromosomes occurs during oogenesis, then some eggs will have two X chromosomes and some eggs with no X chromosomes. If a normal sperm fertilizes these two types of eggs, what genotypes are possible?

2007-04-02 12:43:40 · 1 answers · asked by kuzya 1

Most of the time, when two species or groups of organisms are compared, their physical features reveal a lot about their evolutionary relationship, but then how come similar physical features don’t always indicate a close evolutionary relationship?

2007-04-02 12:38:41 · 3 answers · asked by LOVE♥ 1

Which is larger? The superior vena cava or the aorta?
And does the aorta have the thicker wall compared to the aorta? Thanks for the help.

2007-04-02 12:26:34 · 3 answers · asked by shih rips 6

One human gene, which was one thought to be X-linked, controls the length of hair on men's ears. If a man with hairy ears has sons, all of them will have hairy ears, but if he has daughters none of them will have hairly ears.
Why these differences exist?

2007-04-02 11:49:55 · 6 answers · asked by kuzya 1

Friction caused by the beating heart? I really dont know.

2007-04-02 11:49:07 · 5 answers · asked by jimihendrix1987 2

2007-04-02 11:43:08 · 3 answers · asked by Richard A 2

plz explain

2007-04-02 11:32:05 · 9 answers · asked by ??--?? 2

2007-04-02 11:18:01 · 7 answers · asked by daydreamer 2

We are the only animal (at least so extremely) that changes our environment to fit our needs. Is this continuous process capable of stinting our evolutional growth?

2007-04-02 10:44:35 · 7 answers · asked by smellyfoot ™ 7