OJT 3 Grade 10ggggggggjjjjjjjyyyyyy.pptx

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1. GENE MUTATION

2. OBJECTIVES At the end of the lesson, the students must be able to: Explain and discuss what is gene mutation. Participate in the class activities and class discussion.

3. You have learned that DNA molecule consists two nucleic acid chains that spiral around an imaginary axis to form a double helix. Nucleic acid, which is made up of repeating units known as nucleotides, contain the code that guarantees the accurate ordering of the 20 amino acids in all proteins made by living cells.

4. are changes in the genetic sequence, and they are the main cause of diversity among organisms. These changes occur at many different levels and they can have widely differing consequences. Although various types of molecular changes exist, the word "mutation" typically refers to a change that affects the nucleic acids. Mutations

5. In cellular organisms, these nucleic acids are the building blocks of DNA, and in viruses they are the building blocks of either DNA or RNA. One way to think of DNA and RNA is that they are substances that carry the long-term memory of the information required for an organism's reproduction.

6. mutation is a change that occurs in your DNA sequence, either due to mistakes when the DNA is copied or as the result of environmental factors.

7. Direction: Study the pictures below and answer the questions that follows . Activity 1: Picture Analysis

8. What determines the color of the tiger’s coat? ________________________________________________________________________ If the DNA sequence were to change, what would this be called? ________________________________________________________________________ Explain how a mutation could cause this tiger to have a white coat instead of an orange coat. ________________________________________________________________________

9. Explain what a mutation is. _______________________________________________________________________ Explain how this mutation caused this tiger to have a white coat instead of an orange coat. _______________________________________________________________________ Which of these would most likely cause this mutation? ________________________________________________________________________

10. Activity 2: For Your Information Directions: Read the facts about Mutation and complete the puzzle that follows.

11. Reflection Complete the statement below. Learning what is mutation can help me in understanding. ___________________________________________________________________________ ___________________________________________________________________________

12. END