Science & Mathematics - 14 January 2007

2007-01-14 04:20:55 · 6 answers · asked by Micutzu 1 in Engineering

You are preparing reagents for your dideoxy sequencing project. You want to make a stock solution of ddGTP (514.93 g/mol). How much ddGTP will you need to weigh out to make 1000µl of a 100mM stock?


a.5.15x10-1 grams

b.5.15x10-3 grams

c.5.15x100 milligrams

d.5.15x104 micrograms

2007-01-14 04:17:07 · 5 answers · asked by Anonymous in Chemistry

2007-01-14 04:13:10 · 9 answers · asked by goring 6 in Physics

2007-01-14 04:10:55 · 2 answers · asked by Masih S 1 in Earth Sciences & Geology

2007-01-14 04:10:28 · 12 answers · asked by uploadmixes 1 in Astronomy & Space

2007-01-14 04:07:57 · 4 answers · asked by goring 6 in Astronomy & Space

could you please give me the value of the measurements . example , how many centimeters make a meter or how meter makes a centimeter, how ever it goes. thanks

2007-01-14 04:05:21 · 16 answers · asked by Lorna D 1 in Mathematics

Let A = (X element R | {x,x^2,x^3....} intersecting Z (integers) not equal to the empty set

is 5 an element of A, is 1/2 an element of A?? thanks

2007-01-14 04:03:54 · 3 answers · asked by Anonymous in Mathematics

2007-01-14 04:03:12 · 1 answers · asked by Anonymous in Physics

I heard that as you move away from the sun, each planet's orbit is larger than the orbit of the planet just passed,at some ratio. Also I heard the galaxies are arranged as if on the surface of soap bubbles. Also what is the relation of the plane of our planets to the plane of our galaxy ,to the planes of the other galaxies. I would like more info please.

2007-01-14 04:02:36 · 5 answers · asked by pookles2 1 in Astronomy & Space

In medicine why are some consultants called dr.. and some called mr...?

2007-01-14 04:02:29 · 15 answers · asked by footie089 1 in Medicine

2007-01-14 04:01:45 · 3 answers · asked by D310N 3 in Mathematics

2007-01-14 04:00:27 · 3 answers · asked by goring 6 in Physics

Hi there.. today when i was with my friend someone give us a puzzle but there was something i couldn't understand about it i hope you can explain it for me, he said : " 3 guys paid a 30$ thats 10$ for each to buy 1 radio from a kid then when the kids boss came back he asked the kid for much he sold the radio he replyed for 30$ the boss said its worth only 25$ and he order him to give them the 5$ back, the kid take 2 $ and give each one 1$, now if we calculate the money 3 guys paid 30 10 from each 10 + 10 + 10 = 10 x 3 = 30, and for the radio if we tell it was for 25 $ the kid take 2$ + 3$ for each also thats 30 $ but if we tell each of the guys paid whats like 9$ and 9 x 3 = 27 + 2$ with the kid thats 29 and there appear to be 1$ missing how is that happening ?? why cant i calculate this way ??

where can i find more puzzle like this ??


thanks for passing by ;)

2007-01-14 03:57:33 · 7 answers · asked by Ali M 1 in Mathematics

Kendal-Santiago

2007-01-14 03:56:37 · 7 answers · asked by SCOTT B 1 in Geography

Is it possible a worm hole could be over the Bermuda Triangle you think? And is it possible that in 1,000 to 10,000 years we could build a warp or machine that brings us back in the past or future through a warp or worm hole? I am studying Einstein's time theory and galactic worm and black holes, and am also researching the speed of light and travel. Also.. Is it possible that all those UFO's people see are time machines from our future?? It could explain why they do not say or contact us.. Because if they did, it would change the present and alter the future, causing a different out come in the future.. What do you think?

2007-01-14 03:56:24 · 9 answers · asked by christina 1 in Astronomy & Space

why does it take fewer BTU's of energy to keep a house 65 degrees F than it does to keep the same house at 68 degrees F when the temperature outside is 40 degrees?

2007-01-14 03:56:03 · 1 answers · asked by Amy C 1 in Physics

2007-01-14 03:56:01 · 3 answers · asked by Anonymous in Chemistry

Say you have only a UV absorption spectrometry facility. Device an experiment to prove that there is an conformational change of the enzyme upon binding to the substrate.

2007-01-14 03:55:16 · 1 answers · asked by arnab 2 in Chemistry

How leaves grow in a special shape on a perticular plant? I wonder in the plants there must be a central brainI wonder in the plants there must be a central brain. like maple leave has a special shape. When cells are deviding and increasing to make a leave, they should just spread around in randome maner, how they know to make a maple leaf shape? Individual nucleaous should gide a single cell's operations, it may not be able to determine the position of the new cell relative to other cells. Pobably I am able to explain my question. How cells arrange themselves relative to each other to make so definate shaps of leaves. If plants do not have a central brain, then cells must communicate with each other.

2007-01-14 03:53:22 · 3 answers · asked by Happy Smile 1 in Botany

2007-01-14 03:50:46 · 30 answers · asked by JVL 1 in Weather

circumference was given

2007-01-14 03:48:40 · 5 answers · asked by baby 1 in Mathematics

2007-01-14 03:48:24 · 13 answers · asked by Anonymous in Medicine

We wouldnt need to eat eliminating the compliacations of the digestive system.

2007-01-14 03:47:35 · 10 answers · asked by Anonymous in Biology

This book has been written to make this fact known to people. Since its first publication, originally in Turkey and then in many other countries, millions of people have read and appreciated the book. In addition to Turkish, it has been printed in English, German, Italian, Spanish, Russian, Chinese, Bosnian, Arabic, Albanian, Urdu, Malay and Indonesian. (The text of the book is freely available in all these languages at www.evolutiondeceit.com )
The impact of The Evolution Deceit has been acknowledged by standard-bearers of the opposing view. Harun Yahya was the subject of a New Scientist article called "Burning Darwin". This leading popular Darwinist periodical noted in its 22 April 2000 issue that Harun Yahya "is an international hero" sharing its concern that his books "have spread everywhere in the Islamic world."

2007-01-14 03:47:17 · 6 answers · asked by SMILING4EVER 1 in Biology

I am designing this space where we want it to be bright enough to read and dim enough for mood lighting or TV watching. This can easily be accomplished via a dimmer. The question is how do I specify to a builder the level of lighting necessary to read by in terms that I can measure. I know the spec will be in lumens or foot-candles but I don't know the level. Also where can I find specifications like this for various applications?

2007-01-14 03:47:12 · 4 answers · asked by Carl 3 in Engineering

“What is an equation.

What is the degree of equation and relationship between degree and roots of equation? Relationship between the coefficients and roots.

Types of equations and any five methods (brief description)to solve these equations?”

2007-01-14 03:46:41 · 3 answers · asked by nizam_cl 1 in Mathematics

right and left ventricle????or valve????

2007-01-14 03:46:35 · 5 answers · asked by retzthegreat 1 in Medicine

Solve the following system of linear inequalities by graphing.
x+y<5
0 x>1

I have the first one and the last one finished. The second one is the problem I am lost all I do know is the graph will have a solid line instead of dotted one.
I do have a okay graphing program but it will not help with this
So can anyone else?

The first answer that explains how or gives me a link to a example that will show me how gets best answer.

2007-01-14 03:45:29 · 6 answers · asked by bkm_71csi 3 in Mathematics

2007-01-14 03:43:23 · 4 answers · asked by john p 1 in Astronomy & Space