Biology - May 2007

Question for all those that think of viruses not as life ... If it's not a life form ... what is it then?

2007-05-31 20:12:20 · 18 answers · asked by Part Time Cynic 7

1. Know which nitrogen bases pair up and be able to identify the corresponding side of a double helix DNA when given the first side
2.Be able to identify the messenger RNA strand when given one side of the DNA ladder

2007-05-31 17:22:37 · 2 answers · asked by ilovetennis 2

2007-05-31 17:09:57 · 2 answers · asked by Anonymous

normally be contained in an egg cell?

2007-05-31 17:03:22 · 5 answers · asked by moi 2

2007-05-31 17:02:34 · 5 answers · asked by krithiga_srinivasan 1

2007-05-31 16:59:15 · 6 answers · asked by moi 2

2007-05-31 16:55:45 · 6 answers · asked by moi 2

Homosexual mates obviously cannot reproduce. So how has homosexuality been able to survive in the face of evolution? Wouldn't the genes that produce homosexuality fail to be passed on over the generations? Apparently homosexuality has been around since the ancient Greeks.

2007-05-31 16:25:02 · 24 answers · asked by Shasta McNasty 2007 2

it's a true or false question. it says" there are 21 amino acids|"
so it it true or false. & how many amino acids are there?

2007-05-31 15:17:35 · 7 answers · asked by moi 2

Many people learned in elementary school that a theory falls in the middle of a hierarchy of certainty--above a mere hypothesis but below a law. Scientists do not use the terms that way, however. According to the National Academy of Sciences (NAS), a scientific theory is "a well-substantiated explanation of some aspect of the natural world that can incorporate facts, laws, inferences, and tested hypotheses." No amount of validation changes a theory into a law, which is a descriptive generalization about nature. So when scientists talk about the theory of evolution--or the atomic theory or the theory of relativity, for that matter--they are not expressing reservations about its truth.
In addition to the theory of evolution, meaning the idea of descent with modification, one may also speak of the fact of evolution. The NAS defines a fact as "an observation that has been repeatedly confirmed and for all practical purposes is accepted as 'true.'"

2007-05-31 15:00:37 · 9 answers · asked by Anonymous

write the scientific name for the house sparrow useing the correct captialization and grammatical rules

2007-05-31 14:53:29 · 3 answers · asked by Anonymous

2007-05-31 13:15:40 · 6 answers · asked by pedro g 1

2007-05-31 12:59:15 · 3 answers · asked by loh82sk 1

please help. and if you could explain a bit.

2007-05-31 12:53:46 · 2 answers · asked by nemoisemo14 1

why is it used

2007-05-31 10:18:01 · 5 answers · asked by Anonymous

2007-05-31 10:01:37 · 1 answers · asked by nelle 1

2007-05-31 09:59:27 · 3 answers · asked by Anonymous

prokaryotes have many more chromosomes to divide

prokaryotic cells do not have a plasma membrane

prokaryotic cells do not duplicate their DNA before dividing

prokaryotic cells have a single chromosome and no nuclear membrane

prokaryotic cells divide for several months then live for decades without dividing

2007-05-31 09:52:21 · 3 answers · asked by Marla L. 1

this is the only cell cycle phase when the chromosomes are unduplicated

the chromosomes are easier to see when they are elongated and uncondensed

this is when the chromosomes are being duplicated

the X and Y chromosomes

the chromosomes are fully condensed during metaphase

2007-05-31 09:48:05 · 1 answers · asked by Anonymous

During metaphase, chromosomes that are attached to microtubules are observed to undergo a "back-and-forth" movement. What is happening during this movement?

the chromosomes are being replicated

the centrosome is being replicated

the chromosomes are breaking up the nuclear membrane

the chromosomes are being aligned at the equator of the cell

the contractile ring is forming

2007-05-31 09:47:05 · 2 answers · asked by Anonymous

2007-05-31 09:40:28 · 6 answers · asked by Anonymous

Seriously. Do any other animals undergo circumstances that make them kill themselves?

2007-05-31 09:14:07 · 21 answers · asked by Showaddywaddy 5

Give your evidence..

2007-05-31 08:58:06 · 6 answers · asked by Me<3JB 2

Could an organism be born of and evolve entirely in electricity, bacterial or viral maybe, simple lifeforms? Hypothetically

2007-05-31 07:25:37 · 1 answers · asked by Kemikal 2

2007-05-31 05:28:34 · 31 answers · asked by lisa r 1

We are present in all colours - Black, White, Yellow, Brown, Red. We are built differently. We have different textured and coloured hair. Our eyes are differently too. So what does that make of Darwin's Theory ?

2007-05-31 05:18:25 · 10 answers · asked by Anonymous

2007-05-31 04:58:55 · 5 answers · asked by tavis 1

2007-05-31 04:43:00 · 2 answers · asked by ryan h 1

2007-05-31 04:11:58 · 3 answers · asked by deno 1

2007-05-31 03:40:01 · 3 answers · asked by DirtyRed 2