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2.6 DNA and RNA, Difference_DNA_RNA-EN - by Sponk from Wikipedia,…
2.6 DNA and RNA
What is the structure of DNA and RNA?
DNA
= Deoxyribonucleic acid
RNA
= Ribonucleic acid
Both are polymers, long molecules made from a chain of nucleotides
A nucleotide has three parts
A two-part backbone for structural support ...
Sugar
Phosphate group
… and an amino-acid base that contains nitrogen
DNA is a
two stranded
polymer made from a chain of paired-nucleotides with a
deoxyribose
sugar.
Four bases are adenine, cytosine, guanine and
thymine
RNA is
one stranded
polymer made from a chain of nucleotides with a
ribose
sugar.
Four bases are adenine, cytosine, guanine and
uracil
Key Skill:
Draw the schematic structure of DNA or RNA showing nucleotides using circles, pentagons and rectangles to represent phosphates, sugars and bases, respectively
Discovered by Crick and Watson
How does DNA replicate.
What is transcription and translation?
Thymine
(in DNA only)
Guanine
Cytosine
Uracil
(in RNA only)
Adenine
Or
pairs with
pairs with
