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Summary Nucleic acid notes
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  • Course
  • Unit 1 - Biological molecules
  • Institution
  • AQA
  • Book
  • Oxford International AQA Examinations

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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  • No
  • Topic 1 - nucleic acids
  • September 18, 2022
  • 11
  • 2022/2023
  • Summary

Subjects

  • revision
  • biology
  • aqa
  • a level
  • nucleic acids
  • biological molecules
  • notes

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  • Unit 1 - Biological molecules
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Content preview

Biological
Moleadesf-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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