Biology - December 2006

Why? Us humans fight with each other in wars killing one another as for other races such as cats don't do that.....

2006-12-04 09:25:41 · 6 answers · asked by kogmu 3

.

2006-12-04 09:22:40 · 4 answers · asked by Carleigh W 1

2006-12-04 09:17:50 · 2 answers · asked by princetongirl81824 2

????

2006-12-04 09:05:37 · 4 answers · asked by Samantha G 1

then what blood type is our baby??

2006-12-04 08:33:49 · 11 answers · asked by Crystal M 2

I've recently read a discussion on evolution, and find it very interesting.

I've come to conclusion, I'm for evolution, after all, there are facts/proof evolution is what started this world/universe. It all started with one cell. How did that cell get here?

If anyone could help me understand this, please do =)

2006-12-04 08:28:06 · 8 answers · asked by Anonymous

2006-12-04 08:19:39 · 4 answers · asked by Anonymous

2006-12-04 08:19:31 · 15 answers · asked by broken 1

Because they lack a nuclear envelope, prokaryotic cells have little opportunity to regulate the production of proteins once an mRNA has been transcribed

true or false

2006-12-04 08:17:14 · 3 answers · asked by R C 2

2006-12-04 08:04:25 · 8 answers · asked by atw_1man 1

A trait or charastic that allows an organism to survive in its local hapitat is a/an

1. fitness

2. evolution

3. natural selection

4. adaptation

(I was thinking the answer was #1, but couldn't it be all of these? Please help. Thanks)

2006-12-04 07:45:55 · 7 answers · asked by wendy h 3

2006-12-04 07:37:30 · 4 answers · asked by perplexedforest 1

If a mixture of bacteriophages, some labeled with radioactive sulfur and others labeled with radioactive phosphorus, is placed in a bacterial culture, the bacteria will eventually contain:


1. Radioactive sulfur

2. Radioactive phosphorus

3. Both radioactive sulfur and phosphorus

4. Neither radioactive sulfur nor radioactive phosphorus

5. Complete viruses with radioactive sulfur coats.

( I believe it is #3, but want someone to back me up on this. Thanks!)

2006-12-04 07:23:05 · 3 answers · asked by wendy h 3

2006-12-04 07:12:30 · 1 answers · asked by pss4dm 1

2006-12-04 06:56:58 · 16 answers · asked by ~●~נυввℓувυввℓу~●~ 2

Is there a test one can do?

2006-12-04 06:25:28 · 4 answers · asked by Joyce 4

1- In rabbits, short hair is due to a dominant allele (S) & long hair to a recessive allele (s). A cross between a short haired- female & a long haired male produces a litter of 1 long haired & 7 short haired offspring.
a- What are the genotypes of the parents?
b-What phenotypic ratio was expected in the offspring generation?
c-How many of the 8 offspring were expected to be long haired?
d-If the female had been homozygous short haired animal,how many of the 8 offspring would have been expected to be long haired?
----
Should my punnett square be set up as Ss x ss? I think that's wrong... and I'm confusing myself. = /
I know it's probably a lot simpler then I'm making it seem.

I know it's a lot, but can someone please explain this to me, I would really appreciate it. Thank you! = )

2006-12-04 06:24:34 · 2 answers · asked by Miss*Curious 5

Four of the five choices listed below describe changes at the chromosomal level. Select the exception.

1. Base-pair substitution

2. Duplication

3. Translocation

4. Deletion

5. Inversion

(I know 1, 3, 4, are not the answer. just not sure about 2 and 5!)

2006-12-04 06:12:54 · 7 answers · asked by wendy h 3

If a base substitution of "T" in place of "C" occurred in position 3 of the transcribed DNA strand sequence "ACC" you would predict the protein product:

a. will be one amino acid different than the normal protein

b. will remain unchanged

c. will have a vastly different set of amino acids

d. will be smaller than the normal protein

2006-12-04 06:10:54 · 3 answers · asked by R C 2

Which of the following is false?

1. In a chain elongation, the amino acids are added to the chain according to the codon sequence in the messenger RNA

2. Several ribosomes, called a polyribosome, can travel along the messenger RNA molecule, translating it at the same time.

3. The general shape of transfer RNA molecules is uniform

4. Enzymes found in the ribosome catalyze the formation of the bonds in the new polypeptide.

5. none of these

(I am fully confused and lost on this one. If you could explain your answer, I would greatly aprreciate it!) Thanks again.

2006-12-04 06:04:23 · 4 answers · asked by wendy h 3

Rather than just a normal cyclic variation in the Earth's temperature?

2006-12-04 05:58:43 · 11 answers · asked by jessica_stay 1

2006-12-04 05:57:41 · 1 answers · asked by sims 1

2006-12-04 05:51:06 · 2 answers · asked by jessica_stay 1

2006-12-04 05:46:12 · 4 answers · asked by Nurse2b 1

Is it possible for us to estimate the time of our next evolutionary upgrade?

Would it occur at birth (like most of the X-men mutants), or would our bodies and/or minds suddenly go under drastic, phenomenal changes? Would those changes happen to every human at once, or would they be more likely to happen to certain individuals?

Can we predict what kind of changes might happen to us? Have we discovered an evolutionary pattern or something that could give us an idea what changes might be to our species? -- such as perception, fears, etc. of the subconscience or major events of the stimuli?

Also, what would happen to the rest of the species on the planet; do they have their own evolutionary cycle. If so, how have they evolved (if there are any periods recent enough)?

Where are we at?

2006-12-04 05:39:19 · 4 answers · asked by ? 3

Is it possible for the sex of an animal to be determined after the zygote is formed? Can you give me an example so that it is easier for me to understand? Thanks!

2006-12-04 05:19:49 · 18 answers · asked by Nurse2b 1

2006-12-04 05:19:08 · 4 answers · asked by Anonymous

2006-12-04 05:11:55 · 3 answers · asked by swami 2

2006-12-04 05:08:42 · 5 answers · asked by mary_kevin05 1

1- An individual whose genotype is unknown, phenotypically expresses a dominant trait. To determine the genotype of the individual with the unknown genotype, you perform a test cross. The results of the offspring produced show 50% with the dominant and 50% with the recessive trait. What is the genotype of the unknown individual.

2-Two sisters both have blood type O and neither of the parents have type O. List all the possible blood types of the parents and all of their potential genotypes.(write in the correct format ( I^A/I^A, ii/I^B etc)
-----
1- I don't even know how to start this, is it trial and error is there a real way to approach this problem?

2- I don't understand how to set up these punnett squares, I know that Type O = ii, but I can't set up ii with any other blood type b/c that would result in some being type O which the parents aren't.

Can someone please explain how to set these up, I'm trying, but they aren't making sense. I'd really appreciate it.Thanks! = )

2006-12-04 04:39:56 · 2 answers · asked by Miss*Curious 5