DNA Replication?
DNA can copy its self over and over again in order to keep
creating for the organism it is working for. This action is called DNA
replication and takes place in the cell nucleus.
How
does DNA replication work? The molecules of DNA are made up of two strands of
DNA that are connected together by hydrogen bonds. Hydrogen bonds always form
between pairs that complement each other such as adenine compliments thymine
and cytosine always pairs with guanine. When a molecule of DNA is trying to
split fee of each other, an enzyme, called DNA gyrases, relaxes the strands so
that they can split into two separate strands. Then the nucleotides in the
nucleus bond with the unpaired bases with the help of DNA polymerase to the split
strands and form two new DNA molecules. Once the strands are paired you have
two new sets of DNA. Because there is one strand for the original and one new
strand the replication process is considered semi-conservative, where one half
is conserved from the original pair.
Why are there so many things to do for DNA replication? There
are many things that have to happen in order for DNA to be replicated. This is
because it carries genetic information and codes for everything in order for
the cells to do their jobs. If the code is not replicated correctly then the
information passed can cause extreme harm to the cell and the organism to the
point where they could both die.
you really need more detail for this kind of thing, this doesnt even explain okazaki fragments
ReplyDeleteprof premraj pushpakaran writes -- 2018 marks the 100th birth year of Arthur Kornberg!!!
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