Module 7 Molecular Genetics
Lesson 3.7.2
Lesson 2—DNA Replication

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Get Focused
If you had the complete “Book of Life,” how would you copy it for your children? Would you write it out? Would you photocopy it? How would you know that it didn’t contain any mistakes? The DNA from the single original cell must be replicated as the cell divides. Mistakes in this replication process can be life-threatening. In lesson one, you learned the structure of DNA. This structure allows for a fantastic way of copying all of the hereditary information of the cell called DNA replication. In lesson 4, you will however learn that this process isn’t perfect. Mistakes do happen. Could superheroes be created through these mistakes? Keep this question in mind as you move through the lesson.
This lesson will address the following focusing questions:
- How does DNA code our genetic message?
- How do new cells get a copy of this message?
This lesson should take approximately 60 minutes to complete.
Module 7: Lesson 2 Assignment
Once you have completed the learning activities for this lesson, please complete the online assignment.
The other questions and activities in this lesson are not marked by the teacher; however, you should still attempt all of the work offered here. They are designed to help you review important information and build key concepts that may be applied in future lessons.
Here is a tutorial video for this lesson that you can watch if it suits your learning style. Bio30 tut#3.7.2 Replication and Transcription