DNA Structure, Function, & Replication
Standard BIO1.LS1.3
Integrate evidence to develop a structural model of a DNA molecule. Using the model, develop and communicate an explanation for how DNA serves as a template for self-replication and encodes biological information.
Explanation
Discussions of DNA in earlier grades have been limited to discussions of genes and the role of genes in the appearance and activities of organism. Biology
1 represents a student’s introduction to a molecular model of DNA as well as the organization of DNA into genes and genes subsequently into
chromosomes. Students should address interactions between genes in proteins which regulate both the shape and reproduction of DNA molecules. It is
important to note that not all segments of DNA are transcribed for proteins. Portions of DNA are involved in regulating the expression of genes or
affect the structure of the chromosomes (replication origin, centromeres, and telomeres).
Integrate evidence to develop a structural model of a DNA molecule. Using the model, develop and communicate an explanation for how DNA serves as a template for self-replication and encodes biological information.
Explanation
Discussions of DNA in earlier grades have been limited to discussions of genes and the role of genes in the appearance and activities of organism. Biology
1 represents a student’s introduction to a molecular model of DNA as well as the organization of DNA into genes and genes subsequently into
chromosomes. Students should address interactions between genes in proteins which regulate both the shape and reproduction of DNA molecules. It is
important to note that not all segments of DNA are transcribed for proteins. Portions of DNA are involved in regulating the expression of genes or
affect the structure of the chromosomes (replication origin, centromeres, and telomeres).
Identifying the Substance of Genes
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DNA Replication
13-3
Notes
The Structure of DNA
13-2
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Other
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