Science & Mathematics - 1 January 2007

Which of the following allows for DNA to make identical copies during interphase?

A) the helical structure

B) the complimentary nitrogen base pairs

C) the imbedded proteins throughout the DNA molecule

D) none of the above

Pattern baldness in males is a trait found on the "x" sex chromosome (pair 23). Which of the following is a true statement?

A) If a boys father is bald, he has a fifty percent chance of also being bald.

B) Baldness can only be inherited from the mother.

C) All males have a twenty-five percent chance of inheriting pattern baldness.

D) none of the above

Which of the following is NOT part of a DNA molecule?

A) nitrogen base

B) phosphate

C) potassium

D) sugar

Thankyou. The most detailed, and best answer will not only recieve the best answer award, but also a thumbs up, and the 2 points for answering the question. (A total of 13 points.)

2007-01-01 09:13:46 · 6 answers · asked by tony c 2 in Biology

do you know any science fair questions so you can use it foe the science fair for a fifth grader?My daughter can't think of a problem and needs help.And she wants to win because she always worked hard on her projects but never won.Did you have a project that won and is suitiable for a 5th grader?If so,may you tell me?

2007-01-01 09:11:57 · 3 answers · asked by surveyperson2006 1 in Other - Science

2007-01-01 09:06:24 · 3 answers · asked by GrayC 1 in Zoology

find the area of the largest rectangle with lower base on the x-axis and upper vertices on the parabola y=16-5x2.

2007-01-01 09:05:27 · 4 answers · asked by Anna 2 in Mathematics

2007-01-01 09:05:16 · 2 answers · asked by Anonymous in Zoology

2007-01-01 09:04:31 · 27 answers · asked by paul b 2 in Astronomy & Space

Yeah, i've been wondering about pi lately, and i was curious to see if anyone could help me answer some questions. Such as, where it comes from, what it is, how it came to be, and who thought of the idea. Thanks.

2007-01-01 09:03:34 · 8 answers · asked by dudeonfire23 2 in Mathematics

When immersed in hot water, like in a bath tub, do we sweat, since we are hot; but on the other hand there's already water around us... so do we sweat?

2007-01-01 09:03:09 · 11 answers · asked by flobber238 2 in Chemistry

2007-01-01 09:02:57 · 6 answers · asked by M W 1 in Mathematics

If, as you approach the speed of light, mass increases so that you would need an infinite amount of energy and never be able to reach that velocity . How is it that a photon ( a particle of light) which I believe does have mass, manage to screw up Einstein's equation and travel at 300,000 km/sec.?

2007-01-01 09:01:01 · 9 answers · asked by Anonymous in Physics

2007-01-01 08:59:55 · 7 answers · asked by neatuovi 1 in Physics

2007-01-01 08:56:46 · 16 answers · asked by Anonymous in Weather

Could you give an example too. Thanks

2007-01-01 08:55:42 · 2 answers · asked by iloveyou (: 2 in Botany

2007-01-01 08:52:43 · 8 answers · asked by jennyleighoh 2 in Mathematics

Is a Euglena a protist or algae?

2007-01-01 08:48:45 · 4 answers · asked by Anonymous in Botany

2007-01-01 08:48:37 · 9 answers · asked by rickygurule@sbcglobal.net 1 in Zoology

2007-01-01 08:48:08 · 3 answers · asked by Anonymous in Chemistry

sorry not a question but theres like a weird halo round the moon about a mile wide ,looks like a ring of cloud ,anyone know what this is ? and reply if you can see it ,its slightly fading at the moment pretty cool to look at 5 min ago.

2007-01-01 08:48:04 · 23 answers · asked by Anonymous in Astronomy & Space

Hello everyone, I have partial fraction decomp. homework and i do not understand it, or even how to begin it, at all.

can anyone tell me how to do these few problems, and
i do not have to solve for constants.

1. ( x-2 ) / (x^2 + 4x + 3)

2. (6x+5) / (x+2) ^4

and now i have to write the partial fraction decomp of the rational expression...
1. (1) / (4x^2 - 9)

2007-01-01 08:45:27 · 4 answers · asked by Gators08 2 in Mathematics

2007-01-01 08:41:39 · 5 answers · asked by ? 6 in Astronomy & Space

2007-01-01 08:37:08 · 5 answers · asked by heather shrives-dornan 1 in Biology

In an accident, all but one baby is found alive. So actually how many baby is alive?

2007-01-01 08:37:05 · 9 answers · asked by Anonymous in Biology

2007-01-01 08:35:32 · 3 answers · asked by dehuny 1 in Earth Sciences & Geology

2007-01-01 08:31:09 · 12 answers · asked by Anonymous in Mathematics

I've read a company in Asia intends to drill to the earth's core. What are the problems with this? Creating the hole? releasing gases, magma, etc? Destablization? Earthquake potentials? Gravity, mineral and liquid complications?

2007-01-01 08:26:25 · 8 answers · asked by Greywolf 6 in Earth Sciences & Geology

what is the answer to this problem y + 6 > 5

2007-01-01 08:25:11 · 7 answers · asked by eeyore7249 2 in Mathematics

i'm in south africa and i have to squint to look at the moon at how bright it is,like someone put on a light.
they posted this question earlier about the moon brightness,dont know about the closer to earth theory.
anyone up for debate?

2007-01-01 08:20:16 · 3 answers · asked by justme 2 in Astronomy & Space

2007-01-01 08:19:47 · 3 answers · asked by Anna 2 in Mathematics

By squaring a rectangle, I mean ... "GIven a rectangle, construct a square with the same area of that rectangle"

I found the steps and proof on how to square a rectangle on this site: http://mathworld.wolfram.com/RectangleSquaring.html

However, I do not understand the how they got from the first to the second step of the proof. What makes the area of the rectangle equal to (a+b)(a-b)? I understand the (a+b) side, but what makes the other side (a-b)?

Answers appreciated. Thanks!

2007-01-01 08:16:56 · 0 answers · asked by tiff-fee-uh-nee. x_X 2 in Mathematics

2007-01-01 08:15:13 · 3 answers · asked by Anonymous in Chemistry