Class Summary - We started out today with a textbook quiz on protein synthesis. Then, we reviewed what we had learned about mitosis with a picture ws completed in class. When completed, we used a guided tour of DNA, chromosomes, proteins, and genes to help us understand better what we are talking about. The 'tour' can be found here: learn.genetics.utah.edu/content/basics/oldtour/(Click on DNA, Genes, Protein and Chromosome tab). Finally, we started discussing Protein Synthesis. Proteins are needed for essentially every process that the body does. The problem is that the information to make each protein is stuck in the nucleus as genes on the DNA. This is where transcription comes into play. During transcription, mRNA assembles using complementary nucleotides on DNA that has been unzipped at a specific gene. RNA replaces thymine with uracil. Once the mRNA has a complementary chain, it leaves the nucleus with the code for a specific protein. Translation occurs at the ribosomes (rRNA and protein). Three nucleotide combinations on mRNA are called a codon. tRNA brings the complementary nucleotides as 'anticodons.' These anticodons carry an amino acid. The amino acids combine to make proteins. We started a worksheet packet (not graded) to guide us through this process.
Homework - Test is tentatively scheduled for 9/30. Students should know the following to be prepared for the test: 1. Cell Diagram / Labeling (No word bank) 2. Organelle Functions (No word bank) 3. What happens during each stage of interphase 4. DNA Structure 5. DNA Replication 6. Protein Synthesis 7. Phases of Mitosis (PMAT and What Happens) 8. BASICS of Meiosis 9. Movement across a membrane
Objectives - Students will learn the basis for protein synthesis.