Topic 2.6: Structure of DNA and RNA
Essential Idea: The structure of DNA allows efficient storage of genetic information.
At SHS, Topic 2.6 is taught in the following class unit(s):
Statements & Objectives:
2.6.U1 The nucleic acids DNA and RNA are polymers of nucleotides.
2.6.U2 DNA differs from RNA in the number of strands present, the base composition and the type of pentose.
2.6.U3 DNA is double helix made of two antiparallel strands of nucleotides linked by hydrogen bonding between complimentary base pairs.
2.6.A1 Crick and Watson’s elucidation of the structure of DNA using model making.
2.6.S1 Drawing simple diagrams of the structure of single nucleotides of DNA and RNA, using circles, pentagons, and rectangles to represent phosphates, pentoses and bases.
2.6.NOS Using models as representation of the real world- Crick and Watson used model making to discover the structure of DNA.
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