Biology - October 2007

Why do we have to add reverse and forward primers to a sample of DNA before sending it to sequencing?

What is the process to prepare the primers? (make up your own numbers and examples if it makes it eaier to explain)

2007-10-19 14:34:36 · 3 answers · asked by swtfantasiez 2

2007-10-19 14:30:47 · 2 answers · asked by swtfantasiez 2

2007-10-19 14:22:56 · 5 answers · asked by MidnightStarss 2

a. lack cell structure
b. cannot be seen w/out a microscope
c. contain genetic material
d. cause human disease
e. lack a nucleus

Please cite sources.
Thanks so much!

2007-10-19 12:47:20 · 3 answers · asked by ms.curious 2

To make this short we did a lab & I totally screwed up.

We were supposed to: imitate digesting a boiled egg (protein) with given substances. (Only directions). We had Pepsinogen, HCl, Bile, Pancreatic solution and water. We were to use 4 test tubes, and observe the qualitative process of digestion over a few days.

What we did: put the chopped boiled egg in HCl for 5 minutes. Put it in water for 5 min. Put it in Bile for 5 min and then put it in pancreatic solution for 2 days. Please dont laugh at me...but here;s my list of mistakes:

1. Didn't make the necessary Pepsin by mixing pepsinogen and HCl. In fact I didnt use Pepsinogen at all cuz I forgot)!

2. We didn't have a controlled factor (which should have been amount of HCL)...in which case pepsinogen would be independent.

3. Even if we did do that we needed to leave it in for longer than 5 min.

4. There is no pancreatic solution in protein digestion!!
HELP!
I have no control variable & can only discus 1 error!TY

2007-10-19 12:24:54 · 3 answers · asked by justmyinput 5

information, with a web site or a book as reference please let me know. Thank You and yes this is for homework, I can't find it in my book or in my notes.

2007-10-19 12:02:15 · 2 answers · asked by Miss 6 7

2007-10-19 09:17:59 · 5 answers · asked by thx0x472 1

2007-10-19 08:26:01 · 8 answers · asked by xiao l 1

2007-10-19 08:10:00 · 10 answers · asked by xiao l 1

2007-10-19 07:01:14 · 17 answers · asked by whazzah 2

2007-10-19 06:22:31 · 1 answers · asked by sheinfield 1

Like a virus that makes you smarter... I would love to get my brains f*cked in. Oh how this planet could use a "smart" plague...

2007-10-19 06:00:15 · 11 answers · asked by Anonymous

When making agar plates, why do you have to wait until the liquid agar cools to 50 degrees before pouring into the petri dish?

2007-10-19 05:43:42 · 1 answers · asked by lilbit 2

Is this possible? What will I need to do? I really like this idea for my science experiment but I don't know where to start.

2007-10-19 05:13:24 · 1 answers · asked by Dimples 5

2007-10-19 03:44:10 · 13 answers · asked by Richard C 3

Ok so if this is true..
http://news.yahoo.com/s/livescience/20071019/sc_livescience/originofvisiondiscovered


Are they saying we mutated from 'Hydras' or how else did the gene's infect other species with this light sensing gene? sounds like a load of baloney to me..

2007-10-19 03:07:55 · 6 answers · asked by █ORal-K 2

the pentoses, ribose, deoxyribose form integral parts of

a. glycogen

b. hexose monomers

c. sucrose


d. RNA and DNA (I think this is correct but can't see pentose where pentose is invloved. HOW???)

2007-10-19 02:42:08 · 5 answers · asked by LJC 2

For an eye to work , it needs all its part to come in function all at once , if even one single part is remaining then entire eye would die . But we still have our eyes working means everything must have had came in function all at onces rather then "evolving" over time.... how do you explain this?

2007-10-19 02:35:17 · 11 answers · asked by Acid 3

ATP and cyclic AMP are both nucleic acid monomers that contain sugar:

a. ribose

b. glucose (I think this is correct as it is converted to ATP molecules!)

c. deoxyribose

d. sucrose

2007-10-19 02:21:15 · 2 answers · asked by LJC 2

Manipulating genes? How much is too much?!?

We are closer than ever to answering many questions that have dogged thinkers for thousands of years, and many new queries that we've never even posed before.

Are all our cells identical...skin, bone, etc. Have you noticed on cop science shows that all our cells are identical on the DNA level???

If the skin and other cells are identical, what makes one cell skin and another one not?

Are you aware of the newest research in tiny cell controllers in the body that distinguishes a brain cell from a heart cell?

It's incredible what we are discovering in the 21st century!!! Are we on the road to more cloning? Or less?

What are the cutting edge issues in biological science?

2007-10-19 02:10:52 · 3 answers · asked by Anonymous

Microbes(germs)are a major part of evoultion but they also are the origins of diseases that kill. So how can something be significant to life if it can harm us. I came to the conclusion that all living things must die and germs is just another way for that process to happen, in order for life to start over again.

2007-10-19 01:46:37 · 7 answers · asked by H 1

I'm not familiar by any means with evolution, but have learned how the first organisms learned or gained the mechanism required for death. I see how death is needed for population control but how could an organism develop mechanisms for death ?

2007-10-18 23:16:50 · 4 answers · asked by Anonymous

I'm looking for ways in which evolution has aided both the knowledge of wildlife conservation (what we can do) and also specific conservation efforts (what is being done).

Also, is there any vital aspect of conservation which we would not know about if the theory of evolution did not exist?

2007-10-18 22:34:06 · 5 answers · asked by Anonymous

2007-10-18 20:49:17 · 6 answers · asked by Anonymous

2007-10-18 20:24:58 · 8 answers · asked by Anonymous

A 33.5 kg child starting from rest slides down a water slide with a vertical height of 19.0 m. (Neglect friction.)
(a) What is the child's speed halfway down the slide's vertical distance?
m/s
(b) What is the child's speed three-quarters of the way down?
m/s

2007-10-18 19:55:27 · 4 answers · asked by Anonymous

2007-10-18 19:42:38 · 6 answers · asked by Anonymous

I have to collect some dirty water for monday for science class (This is for bonus marks). We are to view the water under the microscope to identify protists. Any suggestions how to get the most microorganism-infested water? I am considering the ditch.

2007-10-18 19:34:34 · 4 answers · asked by Charles W 2

Remember Adam & Eve story.
Adam = Reason
Eve = Emotion
Desire causes Emotion to succumb , followed by Reason.
Buddha also declares desire as the root cause of the evil, rebirths, sorrows & misery. And it is the desire(of pleasure) which prevents man from salvation/nirvana.
Desire occurs in various organs of body, stomach causes hunger & activates desire to eat & causes a person to salivate.
Similarly
sexual organ --- sexual desire
Eyes -- sights, travel
Ears -- music
Nose -- smell of scent
If desire is nothing but cells requirement in organs, then it means that cells functioning needs to be checked up. And in cells , its the nucleus which does everything and in nucleus , it is DNA.
So , is the DNA, the root cause of desire?
And since the DNA is a coiled of structure, is this the serpent , the devil which is mentioned in genesis , the one which caused eve to eat the apple( desire).
I know many would say that DNA is the foundation of life without which no living being can exist.

2007-10-18 19:03:27 · 6 answers · asked by Anonymous

2007-10-18 18:20:50 · 4 answers · asked by Sophia 1