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2720296
Nucleic Acids
Description
A Levels Biology (Biology Unit 2) Mind Map on Nucleic Acids, created by Jessica Phillips on 13/05/2015.
No tags specified
nucleic acids
biology
as level
dna
rna
nucleotides
unit 2
transcription
translation
replication
a level
cell biology
biology
biology unit 2
a levels
Mind Map by
Jessica Phillips
, updated more than 1 year ago
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Created by
Jessica Phillips
over 9 years ago
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Resource summary
Nucleic Acids
Transcription
Unwind gene length
H bonds break
Free RNA nucleotides to leading strands complementary base pairings
mRNA leaves
DNA recoils
Translation
mRNA attaches to ribosome
Triplet code, 3 bases per amino acid
Coden on mRNA = 3 bases
tRNA brings amino acid, anti-codon base pairs to codon
Replication
Semi conservative
N15 grow organisms
Grow in N14 for 1
Take sample and centrifuge
Repeat
Unwind (helicase)
Free DNA nucleotides complementary base pair
DNA polymerase sugar phosphate (covalent phosphodiester) - condensation reaction
Subunit for DNA and RNA
DNA
Double helix
Deoxyribose sugars
Sugar-phosphate backbone
Nitrogenous bases
Purines
Adenine
Guanine
Pyrimidines
Thymine
Cytosine
Antiparallel strands
Hydrogen bonding
Complimentary base
A=T
C=G
RNA
Single strand
Ribose sugar
Uracil replaces thymine
Less stable
Usually found in cytoplasm
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