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4258800
Structure of RNA and DNA
Description
AS - Level Biology (2. Nucleic acids) Mind Map on Structure of RNA and DNA, created by phoebepowe on 29/12/2015.
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biology
alevels
alevel
nucleicacid
aqabiology
biology
2. nucleic acids
as - level
Mind Map by
phoebepowe
, updated more than 1 year ago
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Created by
phoebepowe
over 8 years ago
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Resource summary
Structure of RNA and DNA
James Watson and Francis Crick 1953
They worked out the structure of DNA - following the pioneering work of Rosalind Franklin.
DNA is made out of two strands of necleotides
Each of the two strands are extremely long
They are joined together by hydrogen bonds, which are formed between certain bases
A pentose sugar, phosphate group and organic base are joined as a result of a condensation reaction
The pentose sugar is deoxyribose
In DNA the sugar is deoxyribose, whereas in RNA the sugar is ribose
Individual necleotides are made up of:
A Pentose group
A phosphate group
A nitrogen containing organic base
Cytosine, C
Guanine, G
Double hydrogen bond
Adenine, A
Thymine, T
Triple hydrogen bond
DNA strands carry immense amounts of genetic information
Base pairings lead to DNA being able to replicate
Thymine
Uracil
Cytosine
Are all Purine bases
Adenine
Guanine
All Pyrimidine bases
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