1. CHAPTER 12: GENETICS

2. Lesson 3: DNA & GENETICS

3. ?? Essential Questions What is DNA?
What is the role of RNA in protein production?
How do changes in the sequence of DNA affect traits?

4. Vocabulary DNA Nucleotide Replication RNA Transcription Translation
Mutation

5. The Structure of DNA
DNA (deoxyribonucleic acid): an organism’s genetic material
A Complex Molecule

6. The Structure of DNA Four Nucleotides Shape DNA
A nucleotide is a molecule made of nitrogen base, a sugar and a phosphate group

7. The Structure of DNA How DNA Replicates
The process of copying a DNA molecule to make another DNA is called replication

8. Making Proteins Junk DNA The Role of RNA in Making Proteins
RNA (ribonucleic acid) is a type of nucleic acid that carries the code for making proteins from the nucleus to the cytoplasm
The process of making mRNA (messenger RNA) from DNA is called transcription

9. Making Proteins Three Types of RNA: Translating the RNA Code
mRNA (messenger RNA)
tRNA (transfer RNA)
rRNA (ribosomal RNA)
The process of making a protein from RNA is called translation
Translating the RNA Code

10. Mutations
A change in the nucleotide sequence of a gene is called a mutation
Types of Mutations
Results of a Mutation

11. Classwork
Page 445 #1, 2, 3, 4, 5, 6, 7, 8, and 10 Write down questions and answers Workbook page 384 – 387 and 393