Please enable JavaScript.
Coggle requires JavaScript to display documents.
Nucleic acids (DNA (Formed in nucleus, Double stranded, Antiparallel,…
Nucleic acids
DNA
Formed in nucleus
Double stranded
Antiparallel
Bases bonded by H
Sugar phosphate backbone protects bases.
Weak H bonds join for strength- easily broken for replication.
Semi conservative DNA replication
2 separate DNA molecules made from 1
Double strand separates + free nucleotides join to bases.
Helicase unwinds + unzips DNA
Polymerase adds nucleotides to 3 prime end
RNA
Formed in nucleus
Single stranded
Bases = C + G, A + U
3 forms = messenger, transfer and ribosomal.
Nucleotides
Phosphate
Pentose sugar
Deoxyribose
Ribose
Base
Purine
6 sided ring
5 sided ring
A + G
Pyrimidine
6 sided ring
C + T
Macromolecules
Polymerisation of nucleotides