Loading presentation...

Present Remotely

Send the link below via email or IM


Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.



DNA facts

arjune gireedharan

on 29 June 2012

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of DNA

D.N.A What is DNA? What does DNA do to us? Malfunctions of DNA DNA and chromosomes DNA stands for deoxyribonucleic acid, this is a cell
in the form of a double helix. This cells main components
are adenine, guanine, thymine and cytosine. Other
components include sugar, phosphate and a nitrogenous base.
This cell is what makes us inherit our genes, which makes
us different from others but a resemblance to our parents. DNA is our genetic blueprint,
it tells our body how we are going
to formed, when we'll reach puberty,
how we'll look when we get older
and much more. In order to know
how we will change DNA carries
genetic information called "genes."
Without DNA our body won't be able to
follow instructions needed for the creation of our body. Chromosomes are basically organized structures
of DNA. Because of chromosomes you can find
out if a pregnant women is going to give birth
to a male or a female by checking if the last
chromosome is an X or Y, Y= boy, X = girl.
Also doctors can find out if you have a recessive
gene or an effected gene. Malfunctions[mutations] are changes in the genome sequence, these happen because of radiation, viruses
transpose[DNA movement] mutagenic chemicals or errors during meiosis[sexual reproduction. DNA mutations are really unwanted, these can makes certain hormones have an offspring, you can even get an offspring in the production of hair. Meiosis Meiosis involves with DNA except
it's reproducing it. Meiosis is basically
a 2 part cell division. Meiosis begins
with a cell containing 2 copies of 1 chromosome, one from the father and the mother, then it produces 4 cells containing one cell, after it becomes a gamate cell. Crime and DNA When people murder or do any another crime
people use forensics to investigate who committed the crime. First officers sample the victims DNA then
the crimes DNA at last the suspects DNA, if the suspects DNA matches the crime DNA then that person did the crime. DNA in crime scenes can be hair, blood, skin, sweat and much more. DNA finger printing First you take a sample which then the DNA is extracted.
Then you cut the DNA into fragments into a restriction enzyme. After the DNA band pattern is transported to a nylon membrane. Later a radioactive DNA probe binds
the DNA. After , the probe is washed away leaving a unique pattern. Then the DNA pattern is transferred to a X-ray film. Importance Of DNA DNA is very important, because it's what
our bodies work by, DNA makes life easier for crime stoppers and it distinguishes our selves from others.
Full transcript