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HAPPY new Year!

HAPPY new Year!. Ta ke out a sheet of pape r and textbooks, please . First things first!. You have new assigned seats for this semester! Please follow as instructions will be given. How was my vacation?. AWESOME! What did I do? flew to LAS VEGAS, NV to visit my BFF from HS for a week

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HAPPY new Year!

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  1. HAPPY new Year! Take out a sheet of paper and textbooks, please 

  2. First things first! • You have new assigned seats for this semester! • Please follow as instructions will be given.

  3. How was my vacation? • AWESOME! • What did I do? • flew to LAS VEGAS, NV to visit my BFF from HS for a week • walked around everywhere • went shopping -_-

  4. What else happened? • after 6 years and 11 months… • I GOT ENGAGED!!

  5. Review on the rules • NO gum or candy inside the lab classroom • We are now on the 3rd quarter for your green hall passes. • No hall pass?? You cannot borrow someone else’s pass anymore! • Use the restroom before or after class unless you have a doctor’s note specifying you need to go! • No late homework accepted! Turn in homework as soon as you walk in. Once folder is picked up---IT IS LATE!! Don’t try to sneak it in. I check homework in as you work on BellRingers. • No sleeping or putting your head down--- you may be sent out into the hallway and make-up work must be done after school • You must have a composition book!!!!

  6. Remember… • Your attitude reflects so many things in this class… • Your grades • Your work ethic (how well you work) • Ms. Taino’s attitude • Your classmate’s attitude • How fast the period will seem • SO PLEASE RESPECT YOURSELF, CLASSMATES, ROOM, and MS. TAINO

  7. Absent the day before? • Check your appropriate binder and the section on the day(s) you were absent. • In your compositions, just copy the BellRinger question and find the answer in complete sentences on your own. • And show me this page sometime during the Work Period, so I, myself can write you were absent…YOU DO NOT WRITE ABSENT---I DO!

  8. Protein synthesis • Protein Synthesis • aka: Translation • Ribosomes use the sequence of codons in mRNA to assemble or make amino acids into polypeptide chains.

  9. Protein synthesis • What is the start codon? • AUG • What are the 4 bases of DNA? • A T G C • What is the “central dogma” of molecular biology? • DNA  RNA  protein • What are the 4 bases of RNA? • A U G C • The genetic code is a language, how many bases form this “language”? • 3 • Where does Transcription occur? Nucleus or cytoplasm? • Nucleus • Where does Translation occur? Nucleus or cytoplasm? • Cytoplasm or ribosomes

  10. Cell cycle and Mitosis

  11. Cell cycle • What are the 3 phases of Interphase? • G1 (growth), S, G2 • What happens in the S phase? • DNA replication • What regulates or controls the cell cycle? • A protein named CYCLIN: regulates the timing of the cell cycle in eukaryotic cells

  12. Mitosis

  13. mitosis • What type of reproduction does Mitosis go through? • Asexual reproduction • What are the 4 phases of Mitosis in order? • Prophase, Metaphase, Anaphase, Telophase • How do daughter cells split apart after Mitosis, what is that process called? • Cytokinesis

  14. Mitosis: Prophase • First phase of mitosis and usually the longest. • The genetic material inside the nucleus reduces and the duplicated chromosomes become visible. Outside the nucleus, a spindle starts to form.

  15. Mitosis: Metaphase • Generally the shortest phase. • The centromeres of the duplicated chromosomes line up across the center of the cell. • Spindle fibers connect the centromere of each chromosome to the 2 poles of the spindle.

  16. Mitosis: Anaphase • The chromosomes separate and move along spindle fibers to opposite ends of the cell. • This movement stops and the chromosomes are completely separated into 2 groups.

  17. Mitosis: telophase • 4th and final phase of Mitosis • The chromosomes, which were distinct and packed into, begin to spread out into a tangle of chromatin. • Nuclear envelope re-forms, spindles begin to break apart, and a nucleolus becomes visible in each daughter nucleus.

  18. Cytokinesis • Completes the process of cell division. • It splits one cell into two.

  19. Introduction to meiosis • “MY – OH – SIS”: a process in which the number of chromosomes per cell is cut in half through the separation of homologous chromosomes in a diploid cell. • Meiosis involves 2 divisions: • Meiosis I and Meiosis II

  20. vocabulary • Take out a sheet of paper. • Label your sheet, “Ch. 11 Vocabulary Guide” • You may write on the back. • This is YOURS! Make it the way you prefer. • Turn to page 323 of your textbooks. • You will do the 7 vocabulary words listed on the right side of the page on your sheet of paper. • You are not turning that in to me.

  21. Vocabulary • Homologous: • Diploid: 2n • Haploid: N

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