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Journal Entry:
Where and when does replication of each occur? What does semiconservative mean is relation to DNA replication?
Learning Intentions
We will learn the basic structural differences between DNA and RNA that determine differences in function.
We will learn DNA and RNA specific nucleotide base pairing that is conserved through evolution.
We will learn how to identify the nucleotides as Purines (G and A), which have a double ring structure and Pyrimidines (C, T and U), which have a single ring structure.
We will learn the main components of DNA replication.
We will learn how to describe DNA replication as a semiconservative process; that is, one strand serves as the template for a new, complementary strand and requires DNA polymerase III and I, Topoisomerase, Helicase, Ligase, RNA primerase, occurs bidirectionally, and differs in the production of the leading and lagging strands.
Closing Task:
You can diagram DNA structure and the process of replication.
Content Standards being covered:
Topics:
IST-1.K Describe the structures involved in passing hereditary information
from one generation to the next.
IST-1.L Describe the characteristics of DNA that allow it to be used as the
hereditary material.
IST-1.M Describe the mechanisms by which genetic information is copied for
transmission between generations.
Science Practices:
1.C Explain biological concepts, processes, and/or models in applied
contexts.
2.B.b Explain relationships between different characteristics of biological
concepts, processes. or models represented visually in applied contexts.
Habits of Mind/Life skills being covered: