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Fun Facts about DNA

February 2nd, 2009

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DNA is an abbreviation for deoxyribonucleic acid.  The shape of DNA is a double helix and all living things are made up of DNA.   Friedrich Miescher first isolated DNA in 1869.  The only cells in the human body that do not contain DNA are red blood cells.  If all the DNA in the human body were unwound, it would reach to the moon and back six thousand times.  A single cell can contain six to nine feet of DNA.  All humans share about ninety-nine percent of the same DNA sequence.  It’s the remaining one tenth of a percent that makes us each unique.  We all share a considerable amount of DNA with many other species.  Our DNA is ninety-eight percent the same as chimpanzees’ and even fifty percent the same as bananas!

DNA makes up our genes.  DNA can be affected by the environment and as a result, environmental factors may result in certain genes expressing or not expressing themselves.  In fact, it’s believed that the majority of our genes do not express themselves.  It takes about eight hours for a cell to copy its DNA.  This copy process must occur before cells divide.  Each inch of DNA can store twenty-five gigabytes of information.  An entire sequence of DNA is known as a genome.  A complete map of the human genome was finished in 2003.  Mutations are changes in the DNA sequence and can be caused by exposure to things such as radiation or chemicals.  These mutations may lead to an increased risk of disease including cancer.  All of DNA’s functions depend on proteins.

All living things today contain DNA which contains our genetic material.  This may not have always been the case though.  There is a theory that RNA used to serve the function of DNA in the earliest life forms on earth.  It is difficult if not impossible to prove this theory, however, since DNA exposed to the environment survives less than one million years.

The study of DNA has numerous scientific applications.  DNA testing can determine if crops are authentic or if certain gourmet foods such as caviar and wine are authentic.  DNA testing can also help  determine a person’s risk for certain genetic diseases.  Paternity tests make use of DNA to determine  if a father and child’s DNA make-up are sufficiently similar.  Similar tests are available to identify sibling or grandparent relationships.  Modern-day forensics also relies heavily on DNA testing to determine if someone was present at a crime scene.  It can also help to identify victims of crimes or accidents.    The techniques that have been used to study DNA led to the development of string search algorithms which  Internet search engines use.  Genetic engineering can be used to create desirable qualities in offspring, such as crops that are disease-resistant.  Genetic engineering is controversial, particularly when it  applies to humans.  Some opponents worry that people will abuse the technology available and create a “super race”.

  1. February 5th, 2009 at 10:09 | #1

    Study of genetics help us many ways. But there is a limit. We should not go against the nature. Nature created man and going against the nature will lead to distruction of him.

  2. Shanon
    February 8th, 2009 at 06:07 | #2

    So god didn’t created you and me. We are created by combining and replicating of DNA. What is the god’s role in this process?

  3. Jerk
    March 1st, 2009 at 22:33 | #3

    Joe, you’re a PISSANT.

  4. Jerk
    March 1st, 2009 at 22:34 | #4

    Just because nature created man, does not mean we cannot study nature.

  5. Vince
    August 25th, 2009 at 21:14 | #5

    @Jerk
    God does not exist

  6. Julie McGuirre
    September 27th, 2009 at 17:21 | #6

    @Vince
    Well you must be JoHOEbah’s Witteness, I suppose…
    I do believe in God.

  7. Pak-Man
    October 31st, 2009 at 17:28 | #7

    Thanks. Very helpful for my med. class.

  8. maddie from are you smarter than a 5th grader
    November 5th, 2009 at 03:42 | #8

    thanks…i guess. It was very useful!

  9. Courtney
    November 24th, 2009 at 22:21 | #9

    God created man as he created everything else in this world.

  10. Welma Zass
    December 7th, 2009 at 16:28 | #10

    god is real get a life!!! seriously people

  11. Welma Zass
    December 7th, 2009 at 16:29 | #11

    oh dang….that was delayed…poop.

  12. God
    December 9th, 2009 at 05:46 | #12

    I am God. Praise me. DNA is alright to use for your sciencey stuff. Argument over. Keep the peace and praise me. God x

  13. December 10th, 2009 at 14:51 | #13

    This websit is one of my favorite because i want to learn alot about DNA. The ression why i want to learn about this is so i can teach my kids about this. And that i would like to teach a science class on all of this stuff.Even i think it is all interesting. So if you were me what would you do? And how would you do it?

  14. Jessica
    December 22nd, 2009 at 13:30 | #14

    @Vince
    Prove that God is not real!

  15. Emma
    January 6th, 2010 at 21:10 | #15

    you people are crazy!! God is real and that is that! and this website is for learning and not for socailizing okay!?? okay, i think i rest my case. anyway im learning about dna in school! kool right??

  16. niji
    January 7th, 2010 at 09:04 | #16

    is this website all about DNAs???????

  17. niji
    January 7th, 2010 at 09:09 | #17

    okay, i guess not…

  18. niji
    January 7th, 2010 at 09:13 | #18

    GOD IS REALLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

  19. niji
    January 7th, 2010 at 09:15 | #19

    He gave thou thy spirit, which thou cannot live without! that’s why He is real!coz if He’s not, then you’re not either! ble! XP

  20. feiya
    January 7th, 2010 at 09:16 | #20

    hi! pepz of d world!

  21. niji
    January 7th, 2010 at 09:20 | #21

    God is REAL! FYI: He gave you you’re soul.

  22. niji
    January 7th, 2010 at 09:21 | #22

    Quote of the Month
    Thank goodness I was never sent to school; it would have rubbed off some of the originality.

  23. niji
    January 7th, 2010 at 09:22 | #23

    is it obvious that i just copied it up there?

  24. U DONT NEED TO KNO MY NAME
    May 11th, 2010 at 11:17 | #24

    im doing a project bout dna right now this website teached me in a clear way…thanxs xx
    GOD IS REAL SHUT UP WHOEVER U ARE
    i also want to say hi to my friend Matt!!! :)

  25. sz
    July 16th, 2010 at 11:44 | #25

    god is real and he only created whole nature but we can study about natue to modify some short commings in the nature.

  26. Happsoad
    October 26th, 2010 at 18:45 | #26

    GOD. END OF STORY

  27. zack
    November 4th, 2010 at 16:01 | #27

    God is real so stop saying he doesnt exist.

  28. Inquisitor
    December 13th, 2010 at 21:24 | #28

    @jessica
    Prove that god is real

    @niji
    What makes you so sure that there really even is such a thing as a spirit?

    I am not saying that god is not real, nor am I saying that there is no such thing as a spirit, but just don’t try and use those kind of excuses if you cannot answer them for your defense yourself.

  29. Dja
    January 11th, 2011 at 18:37 | #29

    hello this is awesome this is the best thing ever !!!

  30. 4 me 2 no and 4 u 2 nevr find out
    January 22nd, 2011 at 15:31 | #30

    GOD IS REAL PERIOD!!!

  31. UnKnown
    February 7th, 2011 at 21:25 | #31

    Emma :
    you people are crazy!! God is real and that is that! and this website is for learning and not for socailizing okay!?? okay, i think i rest my case. anyway im learning about dna in school! kool right??

    Uhhhhhh, why is everyone talking about God?

  32. February 13th, 2011 at 23:29 | #32

    @Inquisitor
    Heeey , GOD is real , get with it :D && if you dont believe in GOD then just Be Quiet instead of causing a huge fight , and thaanks this really helped with my work. ` From .. not for you to know STALKER >:DD

  33. February 20th, 2011 at 16:48 | #33

    if your religious, maybe you shouldn’t be looking up genetic engineering and getting all pissed off when people don’t believe the same as you do. everyone is different. there is no possible way for any human to know for sure that there is a god or what comes next. i, personally don’t really care. all that matters is that you do something good with the time you have on earth, this is not what you should be doing with your life. get lifes of your own, and stop bitching to each other, it’s annoying. and by saying this i am not saying that god is not real.

  34. Justin
    March 11th, 2011 at 00:53 | #34

    ok, after reading this article, it saying that EVERY inch of DNA holds 25 gigabites, and that all the DNA in our body unwound, would reach to the moon and back 6000 times, I started to wonder just how many gigabytes all the dna in our bodys, could hold. so i looked up the distance to the moon in inches, and i found that its about 15,000,000,000 inches to the moon. so here is the math problem.
    15,000,000,000 X 2 X 6,000 X 25 = 4.5e+15
    the problem is, i cant find an online calculator with a long enough display to show the hole number, it just gives me “4.5e+15″ and i dont really know what that means. =( but anyway, just emagen if we could harnes the power of dna, to actuly be able to write it, and translate it with a computer, and put it all in a jump drive.
    mind boggling isnt it? i mean DANG!

  35. Justin
    March 11th, 2011 at 00:58 | #35

    and ya, “GOD IS REAL!”

  36. Samus Aran from Metroid
    April 15th, 2011 at 12:20 | #36

    God created DNA so there period. End of story. Anyways informative text. Thanks for the information!!!

  37. Samus Aran
    April 15th, 2011 at 12:22 | #37

    Nice fun fact list. Informative.

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