F212 Nucleic acids complete notes booklet

F212 Nucleic acids complete notes booklet for OCR AS BIOLOGY UNIT 2 

condensed notes, in the form of mini qurky stories

covers spec for 2.1.2. 

perefect for revision

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  • Created on: 15-11-12 00:52
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Nucleic acids
State that deoxyribosenuclei acid is a polynucleotide usually double stranded, made up of
nucleotides containing the bases groups A,T,C,G
DNA
-in scientific terms its also called Deoxyribosenucleic acid (DNA)
-found in almost EVERY eukayotic cell in the nucleus of a cell
- Acts as an information storage, almost like a treasure chest where it contains precious molecules hold
the coding information/instructions in order to carry the codes
-Struture is made up of nucleotides including deoxyribose
-Double stranded/helical polynucleotide
-A,T,C,G OR A-T &C-G
-stable…read more

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Messenger RNA (Mad RNA )
-template strand of other DNA strabnd of a double helix which is made of the complimentary to
the DNA strand
Ribosomal RNA (Romantic RNA)
-Found romanticizing in the ribosome reading Romeo and Juliet
Transfer RNA (Tramp RNA)Contains
-carries a.acid to the ribosome where amino acids are bound together, eventually forming a
polypeptide
-The nucleotide consists of
1. 1 patronising phosphate group
2. 1 sweet and rather sugary molecule, a pentose also known as a ribose sugar
3.…read more

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Nucleotides
-Nucleic acids are chains of nucleotides which are covalently bonded together
-Remember, nucleotides of the same sugar could be binded together, forming a long chain of
polynucleotide.…read more

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Hydrogen bonds form between the two anti-paralell strands by bringing them together
-The space between these anti-parallel strands is taken up by those naughty nitrogenous bases as they
project inwards.
-Surprisingly, Hydrogen bonds strengthens the DNA structure by making it stale. Thank God for that
because if the hydrogen bonds weren't there, the instructions could easily go horribly wrong
-Naughty nitrogenous base pairs are complimentary to one another because purines and pyrimidines are
now friend.…read more

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RNA
1.RNA is in three forms and has three personalities because it is needs to be read and translate the
information in order to produce various proteins required to make living things functions
The three forms of RNA INCLUDE
Messenger RNA (Mad RNA )
-template strand of other DNA strand of a double helix which is made of the complimentary to
the DNA strand
Ribosomal RNA (Romantic RNA)
-Found romanticizing in the ribosome reading Romeo and Juliet
Transfer RNA (Tramp RNA)Contains
-carries a.…read more

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