your euarkaryotic cells.
- Inside every DNA there is genetic and hereditary information
- DNA has a very unique design to it, it looks like a twisted ladder
and that's why it is called like that and it is also called a double
helix.
and that's why it is called like that and it is also called a double
helix.
- The two backbones of the DNA structure are made from sugar
and phosphate molecules.
and phosphate molecules.
- The bases in the middle and made out of nitrogen and there is
four kinds of them.
four kinds of them.
a) Adenine
> Pyrimidines = Single Ring
b) Cytosine
c) Thymine
>Purines = Double Ring
d) Guanine
- These four nitrogen bases don't just bond with each other in
random order, they only pair with a certain other base.
random order, they only pair with a certain other base.
a) Adenine pairs with Thymine and with no other
b) Cytosine pairs with Guanine and with no other
- There are many important people that take part with the history
of DNA.
- First there is Alfred Hershey and Martha Chase. What they did
is confirm that DNA was genetic material.
- Second, there is Rosalind Franklin. What she discovered how
DNA looked when she took a x-ray picture of it.
- There are many important people that take part with the history
of DNA.
- First there is Alfred Hershey and Martha Chase. What they did
is confirm that DNA was genetic material.
- Second, there is Rosalind Franklin. What she discovered how
DNA looked when she took a x-ray picture of it.
- The final two were Francis Crick and James Watson. What they
did was build the first model of DNA out of metal and wood.
did was build the first model of DNA out of metal and wood.
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