Biology - October 2007

Anyone who can help me with these two questions I will be enternally grateful and the first person to put the correct answers I'll give a best answer rating too. Thanks!
1) Describe 2 ways in which genetic recombination occurs during meiosis.
2) How do the products of meiosis 1 differ from those of meiosis 2?
And a more challenging one:
What are one advantage and disadvantage of asexual reproduction compared with sexual reproduction?

2007-10-23 12:31:55 · 2 answers · asked by iluvchester92391 2

when the human race is patently weighting the odds?

2007-10-23 12:26:33 · 5 answers · asked by Harriet 5

If the bio. father of a baby does not want to take the DNA test to determine paternity, can his parents (who want to know along with the baby's mother) be use for the test?

2007-10-23 12:25:42 · 1 answers · asked by Jamerican Steve 7

Is there a practical use for it (apart from identification obviously) like what would they have been good for thousands of years ago? Why do we have them? How do they form? Thanks!!

2007-10-23 12:24:58 · 1 answers · asked by SmEllY! 6

Match the molecule with its macromolecule.

1. Glycogen
2. Cholesterol
3. ATP
4. Collagen
5. Hemoglobin
6. a gene
7. Triglyceride
8. Enzyme
9. Cellulose
10. Chitin

- - - - - - [Math With these below]
a. carbon
b. lipid
c. protein
d. nuclei

Please help me >_<

2007-10-23 12:14:08 · 4 answers · asked by Rawrie. 2

Inhibitors are common in biological systems.

2007-10-23 11:56:50 · 1 answers · asked by Cholito 1

2007-10-23 11:32:11 · 5 answers · asked by tae tae 1

They said evolution was proven wrong. That's not true right? Evolution is fact, isn't it?

2007-10-23 11:29:36 · 3 answers · asked by Anonymous

I am doing a biology project and I need to find a picture labeled of a picture of a human stem cell do you know where I could find one? I tried googling it and looking on a bunch of websites but I couldn't find really any pictures of it. Please help. 10 points for the one who finds a picture for me any picture. thanks

2007-10-23 11:18:41 · 1 answers · asked by iloveyou6 2

If you extract the DNA from a single strand of hair, is there enought information provided for you to see a 3D model of the person?

2007-10-23 11:10:17 · 6 answers · asked by Anonymous

An object is 1 micron in size and is observed using a light microscope with a 10x eyepiece and a 100x objective. What is the apparent size of the object?

2007-10-23 10:21:58 · 1 answers · asked by Abdul-Rehman H 1

2007-10-23 10:21:35 · 1 answers · asked by Anonymous

Of course, I don't mean that dead people make the choice, but in life, why can't they not sign some sort of thing, like they do for organs? A student of mine asked this question today at school, because there is going to be a blood drive this Friday. I sincerely told him, you know, I do not know, but I will figure it out. So don't go ahead and answer "Cuz they're dead" cuz that is just silly.

2007-10-23 09:47:55 · 12 answers · asked by LumiereLady 2

My goal in an up-and coming lab project is to present a valid example of genetic mutations. (no fruit flies please!)
After studieng many small creatures, I decided it would be most interesting to mutate "Triops (notostracans)". I also want to increase their size greatly and to extend their life by a few days/weeks or so. I read also that they can survive extreme heeat, so i thought that if during their 12 hour larva stage if i place them in a microwave on a low power level the radiation would be extensive enough to mutate them...is this correct?
Any other mutating suggestions, (under 40$ please...). Please no suggestions on changing eating habits to carrots, fish, etc. unless very radical. ;)
To sum it all up-
How can i mutate them so they can
Live Longer,
Get much bigger,
and Have extra legs, heads, eyes, etc.

2007-10-23 09:20:45 · 1 answers · asked by Anonymous

in Biology we have to get information on the rough and smooth endoplasmic reticulum. i need to know the purpose of it, what it's made of, and why it's essential to the cell. if you could list your resources that would be great!! thank you!

2007-10-23 08:46:51 · 7 answers · asked by Anonymous

"What is a compound? How are compounds related to molecules?" I get the what is a compound part but i dont get how they are related with eachother.

2007-10-23 08:37:58 · 2 answers · asked by James Kim 1

2007-10-23 08:34:25 · 6 answers · asked by Anonymous

anything .. what its made of. its function. is it in a plant and(or) animal cell .. any other random fact about it.

Thanks <3

2007-10-23 08:30:51 · 2 answers · asked by Shmashbro [FRICK] 1

The hydrophilic end of phospholipid molecules contains only hydrogen and carbon.

TRUE or FALSE

I think TRUE. My book seems to say that.

2007-10-23 08:16:08 · 1 answers · asked by LJC 2

2007-10-23 08:03:37 · 1 answers · asked by Anonymous

2007-10-23 07:29:37 · 7 answers · asked by Anonymous

Such as Turtles, they have use of the beahes as they come ashore to lay there eggs.

2007-10-23 07:14:21 · 3 answers · asked by Anonymous

We know that we don't need the appendix but is there anything else?

2007-10-23 06:39:25 · 21 answers · asked by MARK S 1

2007-10-23 06:35:43 · 4 answers · asked by William R 1

A) Sma 1

B) Hind 3

C) Eco RI

2007-10-23 05:34:41 · 2 answers · asked by damigurl05 1

pills are scored in the middle. Which side, if any contains the painkiller

2007-10-23 05:27:56 · 2 answers · asked by godloves 1

2007-10-23 05:10:41 · 2 answers · asked by Anonymous

i mean three base pair contain one amino acid. so 60 base pair contain 20 amino acid then why 61?

2007-10-23 05:09:41 · 3 answers · asked by Anonymous

A) 30-40

B) 75-90

C) 50-60

D) 60-75

2007-10-23 05:09:23 · 5 answers · asked by Anonymous

a. ATP is used to make sugars
b. Carbon dioxide is produced
c. sugar is used to make ATP
d. NADP is used to produce carbon dioxide

I think the answer is a. but just checking. Thanks.

2007-10-23 05:08:03 · 2 answers · asked by sjane 2