Biology - December 2006

2006-12-21 12:48:19 · 11 answers · asked by wheels 2

Don't hold anything back. Lengthy answers are good.

2006-12-21 12:30:14 · 18 answers · asked by Ash 1

2006-12-21 12:29:03 · 3 answers · asked by Taylor B. 1

2006-12-21 12:27:34 · 7 answers · asked by bob 1

The starting substance of the Krebs cycle, which is regenerated at the end of the cycle, is:
a, acetyl CoA
b. pyruvic acid
c. oxaloacetic acid
d. citric acid

its not a. acetyl CoA, because i put that as my answer and got it wrong. please help me. thanks!

2006-12-21 12:21:43 · 3 answers · asked by Anonymous

2006-12-21 12:18:23 · 3 answers · asked by Taylor B. 1

2006-12-21 11:55:59 · 3 answers · asked by ♪ ♫ ☮ NYbron ☮ ♪ ♫ 6

Is Prokaryotes the earliest lifeform on Earth?

2006-12-21 11:41:35 · 3 answers · asked by Leandro 2

2006-12-21 11:35:52 · 7 answers · asked by Taylor B. 1

A man is brought to court in a paternity case. He has blood type B, Rh positive. The mother has blood type B, Rh negative. which blood type of a child would exclude the accused from paternity?

2006-12-21 11:06:50 · 3 answers · asked by iqbalkhanayesha 2

2006-12-21 10:32:51 · 5 answers · asked by Yolanda 1

so what is the purpose of DNA sequencing, and how is it done?

My basic understanding is that we can determine the order of the 4 bases in a fragment of DNA somehow using dideoxynucleotides, which stop synthesis because of a missing hydroxl group. I know that the human genome project has something to do with this process, but im confused what the connection is there.

explain in detail if you can, but most importantly i want to know the purpose and basic concept of DNA sequencing and the HGP.

2006-12-21 10:28:31 · 4 answers · asked by sakic_cikas 2

2006-12-21 10:14:41 · 5 answers · asked by Yolanda 1

Please give me very useful and ideal answers

2006-12-21 09:48:47 · 16 answers · asked by Anonymous

Can You Give An Example of a Genetic mutation or an evolutionary process which can be seen to increase the information in the geonome?

2006-12-21 09:38:05 · 7 answers · asked by WDJD 3

So, a glucose molecule went through the process of cellular respiration and made ATP. Would that glucose molecule then be considered ATP? And if it is where can it go from there, can it become carbon dioxide? Or maybe something else?

2006-12-21 09:15:58 · 5 answers · asked by star 1

"Scientists have now cloned the genes found in the bacteria species Deinococcus that shield it from radiation & through recombinant DNA technology, have placed them in tomato plant cells."

is this possible? if so, how?

2006-12-21 09:01:15 · 2 answers · asked by JoAnna 2

2006-12-21 08:19:25 · 13 answers · asked by leleanorc 2

genetically as brothers and sisters, or cousins?

2006-12-21 08:01:18 · 6 answers · asked by lowesman4e 1

I have not yet took a course in biology but read a richard dawkins book and understood mostly all of it except he started talking about memes. And i have never heard this word before what are they.

2006-12-21 07:23:42 · 7 answers · asked by Beaverscanttalk 4

Why can HIV attach itself to a helper T cell (T4 lymphocyte), but cannot attach itself to a skin cell?

2006-12-21 05:48:05 · 4 answers · asked by hey!!!! 1

2006-12-21 04:39:50 · 12 answers · asked by Anonymous

why do we cry when we're upset?
what's the point of crying?
is there an evolutinary advantage to crying?

this is for a biology report type thing, help me out.
and i want real answers with facts, not dumb guesses that have no sources.

2006-12-21 04:39:48 · 19 answers · asked by Anonymous

2006-12-21 04:24:13 · 9 answers · asked by Anonymous

Suppose that within a population of zebras, 111 out of 403 exhibit a recessive hoof trait. In the next generation, 192 out of 598 zebras exhibited the same trait. Show the steps involved in determining whether evolution has occurred

2006-12-21 04:11:58 · 18 answers · asked by hey!!!! 1

Suppose that within a population of frogs, 120 of a total of 480 exhibit an eye colour which is controlled by a recessive allele. In the next generation, 182 out of 506 frogs exhibited the same trait. Show the steps involved in determining whether evolution has occurred.

2006-12-21 04:11:04 · 3 answers · asked by hey!!!! 1

I don't have much research experience, and I need to design an experiment to figure out if promoter differences in different strains of a certain bacterium affect the way a repressor protein is able to bind to the promoter. Any thoughts?

2006-12-21 04:05:00 · 3 answers · asked by nn p 2

2006-12-21 04:02:38 · 25 answers · asked by crewcut 1

You wonder if it is male or female, and the geneticist says it is obvious from the color which sex the calf is.She explains that in Ayrshires the genotype AA is mahogany and aa is red, but the genotype Aa is mahogany in amles and red in females. What she is trying to tell you-that is, what sex is the calf? What are the possible genotypes of the calf's father?

2006-12-21 03:58:30 · 1 answers · asked by iqbalkhanayesha 2

"The lower leg of the Fairbanks Creek mammoth was 15,380 RCY ago while the skin and flesh were 21,300 RCY."
(Natural History, September 1949, p.300

2006-12-21 03:39:38 · 5 answers · asked by truth seeker 1