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Nucleic Acids
Central dogma
Replication of DNA occurs just before mitosis (or
meiosis). Transcription and translation are collectively
known for protein synthesis (BY5).

DNA and RNA are polynucleic chains.
Need to remember 3 structural differences
between RNA and DNA.




DNA
Deoxyribonucleic acid
Nucleotides
FOUND IN NUCLEUS
Mostly single stranded, shorter…

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RNA
RIBONUCLEIC ACID
NUCLEOTIDES

BASES: adenine, guanine, cytosine and URACIL.




3 TYPES OF RNA:

Messenger RNA (mRNA)

Single stranded, produced in the nucleus by copying sections of DNA (gene) it diffuses into
the cytoplasm to provide the template for protein synthesis.



Transfer RNA (t RNA)

Clover lead shape, some single…

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