I'm doing an analysis on DNA extraction in onion cells. And its REALLY hard!
129361
http://biotech.biology.arizona.edu/labs/DNA_extraction_onion_studt.html\n\nhttp://www.miramar.sdccd.cc.ca.us/faculty/dtrubovi/micro/microhandouts/oniondna.pdf#search='DNA%20extraction%20in%20onion%20cells' \n\nhttp://www3.iptv.org/exploremore/ge/Teacher_Resources/teaching_materials/lesson1_onion.cfm\n\nhttp://www.nal.usda.gov/bic/Education_res/protocols/onion.extract.html\n\nhttp://www.sidwell.edu/us/science/vlb5/Labs/DNA_Extraction_Lab/dna_extraction_lab.html\n\nhttp://www.accessexcellence.org/AE/AEC/AEF/1994/dollard_onionDNA.html\n\nand on and on and on.  Just do a google search on your project.
399704
mixing human dna and cow dna is a recipe for disaster...these experiments i think serve no purpose.
338693
http://biology.about.com/library/howto/htcandydna.htm\nThis is how to build a DNA model using candy.  I got it as the second rated site in a google search of "DNA model"  If you don't like their suggestions, you can use this search to find other models.
37072
The important thing is to keep the helical structure clearly visible. Don't worry about the side hydrogens or details of the molecules.\n\nKeep in mind that DNA is a double-stranded helix, and the strands don't revolve around each other identically. Which means there are two sizes of 'grooves': the small grooves are a bit over half the width of the large ones.\n\nIf you use styrofoam balls for the nucleotides and join them with drinking straws (a handy way to do this project), take care that the angle subtended by three of the balls be around 35 degrees.\n\nAbout 10 balls should complete a cycle, which means ball number 11 must be above ball number 1 in a straight line.\n\nDo a strand first, so that it looks fairly twisted yet linear. Add the other strand afterwards. A length of about 20 nucleotides per strand (= 40 in total = 40 small styrofoam balls) should be enough.\n\nGo to a crafts store and buy a bag of balls (they come in 50, 100, etc.) and a bag of 100 drinking straws. Color the balls blue for cytosine, red for thymine, green for guanine and orange for adenine. Pair orange with red and blue with green when building the second strand.\n\nHope this helps.
301743
No difficulties encountered...\n\nA more oriented question would help us all. That forum has full of people who can perform embedding with eyes closed and cut virtually anything, from animal and vegetable to rubbers and cheese.\n\nWe will help you!
46586
the chromosomes group together.
400310
hybridization.com\n\nor just type the keyword and the information you needed wud appear..
39112
what for? for a DNA gel to separate 1000 bp to 10000 bp I'd try a 0.7 % gel (i.e. 1.4g in 200 ml). and run it for 30-45 min (watch the bromophenol blue) this is about 500bp
192286
Its tricky work, i need digrams to explain to you so your better just following this link, I think it will help you out.
246304
Stepwise-First you identify a gene of interest. Then, usually through years of work, you identify some function of the gene.  One way to identify this is to knock the gene out, a process called, approriately, gene knockout.  Knock out the gene in a cell line, or more interestingly, in an embryonic mouse- Now, if the embryo develops, you examine the animal, the tissue, the cellular funtions, and try to determine what has changed with the gene gone.  You can also overexpress the gene, so that it makes much more gene product, and see what happens then.  Once you have some handle on the function of the gene overall, you can make small mutations in it to determine exactly which part of the resultant protein does what.  Outside of scientific investigation, genetic engineering is used to make more viable or resistance plants (for example, put a gene that confers resistance to high salt, that you took from a plnat that grows in salty conditions, and put it into a strain of rice- now the rice can grow in high salt). It is also used to produce pharmaceuticals, such as antibodies- take a gene for an antibody out of the animal that makes it, put it in a bacteria or yeast, and then make tons of the stuff cheaply.
175170
I think analyzing the information in DNA has come along way.  This information can be useful for numerous advances in medicine, one being determining ones predisposition of developing certain diseases.  This analysis can take quite a long time but researches are currently working on ways to speed this up, hopefully to less than 1 day.  You can see this article in New Scientist for a further information.  http://www.newscientist.com/article.ns?id=dn9001&feedId=online-news_rss20
42358
I jsut did the same project with my 13 year old son.\nThis is what we used\n\nhttp://www.enchantedlearning.com/subjects/plants/cell/anatomy.GIF\n\nwe had to make a model
466296
You need to buy or create a detergent lysis buffer. Something with, say, Triton X-100 or Igepal and a protease inhibitor cocktail.\n\nYou can buy these ready made or find several recipes quite easily in standard methods textbooks.\n\nOnce you've isolated your cells you need to incubate them on ice with your lysis buffer then macerate the cells using either a vortex or Dounce homogenizer. Spin down the mixture at high speed and the supernatant is your crude whole cell extract.
303853
try \n\ngtitestlaboratories.org
153518
Go here. http://www.dnacenter.com/\n\nYou can't make them get it done, but you can trick them into giving you DNA by collecting a straw they have used or a cigarette butt or, obviously, a semen sample. Anything with hair, skin cells, or spit will also work. There is no age or time limit.
469456
I did something like that for a science project too. Only mine was a cake with decorations that made it look like a cell... ^_~\nWe also have an actual model of animal and plant cells in my class, but those were mail-ordered. For a really realistic one, you're gonna need some special parts.\nYou can do it more easily with a styrofoam ball of a reasonable size (or a styrofoam cube if you're doing a plant cell), another smaller ball (for the nucleus), I'm not sure what you could use for mitochondria.... Hit a craft store and get creative. There's plenty of stuff out there just waiting for you to find it. Pom-poms could be used for the vacuoles I guess, and you could coat the larger ball with playdoh for the membrane. I'm sure you'll think of something. Remember this when you're working: hot glue guns are your friends.\nJust remember to include all the components:\nNucleus, cytoplasm, vacuoles, mitochondria, cell membrane, endoplasmic reticulum, and the two extra plant parts: chloroplasts and that extra thick wall whose name in English I cannot recall... xD\nIf I can make a sponge cake into an animal cell with some Fuzzy Peaches, Rockets, jelly beans and chocolate sprinkles, I'm sure you can make a styrofoam ball into something just as good or better. Best of luck!
395818
http://www.medicalnewstoday.com/medicalnews.php?newsid=16378\n\nYou need to read the book by Hamer- don't think you will find out enough without the book. Explicit biochem is rarely spelled out for the lay person in generic articles because people are too dumb to understand it.\n\n"\nHamer studied 2,000 DNA samples. He interviewed 2,000 people extensively (226 questions in each interview). The questions, among other things, looked at how spiritual a person is and what their level of faith in God is. \n\nHe found that the VMAT2 Gene was significantly more common among people who believed in a higher spiritual being. According to his research, whether or not your upbringing is religious has no bearing on how religious you turn out to be - but the presence of the VMAT2 Gene version does. "\n\nYou need to focus on this ASPECT in your paper, don't plagiarize. The details on mechanism of action of protein etc.. should be found in the book. Do not forget to cite the article link I pasted above.\n\nThe God Gene - How Faith is Hard Wired into our Genes is the book. Buy it fast if time is of the essence!