Summary Nucleotides and nucleic acids Biology A level for OCR revision notes
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Course
Nucleotides
Institution
OCR
Book
A Level Biology A for OCR Student Book
In depth revision notes covering the whole of nucleotides and nucleic acids. The topic is broken down into the individual specification points, shown by the numbers used throughout.
OCR A Biology Module 2 (Foundations in Biology) Notes
BIOLOGY AS SUPERNOTES
Module 2 A-level notes iPad
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Written for
A/AS Level
OCR
Biology
Nucleotides
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, . 1 3 NUCLEOTIDES &
2 .
NUCLEIC ACID S ↳ wi nuchels
NUCLEOTIDE
e .
. DNA
g phosphate group
T RNA
O
ADD + ATD
# nitrogenous
base
This
an ou
group wi
iS
L ribose
-
Pentose sugar
DNA
·
codes for M
a sequence phosphate group
anrio
of
O/
acidsignc/X-nitrogenous code)
base
Bases :
L Deoxyribose
Adenie + Guarnie Sugar gene = section of DNA
purvie bases
= that contains complete
2 carbon-nitrogen sequence of bases
Chave rings)
thymine pyramidine
-
Cytosme + are bases (1 carbon-
nitrogen ruig)
It's a double helx shape-double stranded
RNA
uracie
phosphate group
replaces
O
X nitrogenous
-
enymee
as a base
base
RNA
swigle Stranded
is
L
ribose sugar
Phosphodiester bond la phosphate group + 2 ester
bonds) -
forms between pentose sugar phosphate
+
group of next nucleotide by a condensation
reaction .
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