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Summary Nucleic acid notes
Detailed, concise and organised revision notes on nucleic acids from the first topic of AQA A level biology. This includes DNA, RNA, DNA replication and characteristics of water and ATP.
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BiologicalMoleadesf-Nudeich-a.de
Topic
, DNA 55134154kt
NUCLEOTIDE STRUCTURE
① PHOSPHATE
①
② PENTOSE ( DEOXY -
RIBOSE
② ③ SUGAR
③ ORGANIC BASES
③ Nitrogen containing organic base
including A (adenine)
pairing
with T ( thymine) and Clcytosme) pairing with G (gummed
-
The pentose phosphate and base join through
sugar , group organic
a condensation reaction to form a
single nucleotide (mono nucleotide)
-
Two monomers are joined as a result of a
phosphodiesterase
between one deoxyribose sugar asd phosphate From
group
a
Another mono nucleotide
to form a dinucleotide
of mono nucleotide this forms
continued lmkmg in
way
-
a
long charm -
poly nucleotide
RNA ( Ribonucleic Acid)
polymer made of nucleotide
single and relatively
-
up ,
short .
Penrose ribose
always
-
sugar is
-
Organic bases are 8ytos.me → Guanine and Adenine → ⑧ rail Can replace of
thymine)
•
mRNA transfers information from DNA to ribosomes
geske
-
• rRNA -
ribosomes are made up of a protein and a different type of RNA
•
tRNA -
protein synthesis
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