Module 7
1. Module 7
1.6. Lesson 2
Module 7—Molecular Genetics: DNA, RNA, and Protein Synthesis
Lesson 2—DNA Replication
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Get Focused
The Book of Life has been written over centuries to record the history of humans, particularly philosophies of religion and insights of life. 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 your copy didn’t contain any mistakes?
The DNA from a single, original cell must be replicated before the cell divides. Mistakes in this replication process can be life-threatening. The structure of DNA that you learned about in Lesson 1 copies hereditary information in a unique way termed DNA replication. In Lesson 4, you will discover 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?
DNA replication: the process of creating an exact copy of a molecule of DNA
Module 7: Lesson 2 Assignment
Your teacher-marked Module 7: Lesson 2 Assignment requires you to submit a response to the following:
- a series of questions on DNA and RNA involving the following:
- an illustration of DNA replication
- a comparison of DNA and RNA
- an illustration of semi-conservative replication
Download a copy of the Module 7: Lesson 2 Assignment to your computer now. You will receive further instructions on how to complete this assignment later in the lesson.
You must decide what to do with the questions that are not marked by the teacher.
Remember that these questions provide you with the practice and feedback that you need to successfully complete this course. You should respond to all of the questions and place those answers in your course folder.
You also have the option of trying additional questions from the textbook for further practice. Consult with your teacher for the answers to these questions. The Key will also provide you with many Diploma Exam-style multiple-choice, numerical-response, and written-response questions that will be an excellent review of the module. Practising your responses to these types of questions is good preparation for the Diploma Exam.
Required Materials and Equipment
paper, scissors, and pencil crayons (if paper model is chosen)