Complete Reproduction MCAS Open Response Date: 12/9/16 Topic: Mitosis vs. Meiosis 2 Page # ___ Must wear uniforms/IDs! 12/9/16 EBHS Admit Slip Complete Reproduction MCAS Open Response

Swap & Grade Reproduction MCAS OR

Mitosis vs. Meiosis Same copy Different copies Body Cell Sex Cell Stomach cell Sperm Cell Liver cell Egg cell

Cell Cycle & Cancer Cancerous lung cells Cancer occurs when cells do not receive proper signaling “Messed up” cells are normally stopped at the checkpoints “Messed up” cells are told to die- known as apoptosis (programmed cell death)** Cancer occurs when cells fail to go through apoptosis, and continue dividing anyway

Chromosomes* = wound up DNA* ^^ Copy into journal!!!

Mitosis What would happen if the DNA was not duplicated before the cell divides?

Mitosis Stages Interphase Prophase IPMATC Metaphase Anaphase Telophase https://www.youtube.com/ watch?v=VlN7K1-9QB0 Interphase Prophase IPMATC Metaphase “I pee, Matt see!” Anaphase Telophase Cytokinesis

Cytokinesis Animal Cell vs. Plant Cell

Mitosis: Meiosis Cell division during SEXUAL reproduction. What do you notice that is different?

Crossing Over* During Prophase 1 of Meiosis, homologous chromosomes pair up, cross arms, and swap genetic material (DNA) Leads to variation among all sexually- reproduced organisms

Class Quiz: Mitosis or Meiosis? Go down the line. Tell me WHY! Class Quiz: Mitosis or Meiosis? Skin cell division Creates identical cells Daughter cells are 2n Bacteria cell division Creates unique cells Occurs in the testes Heart cell division Asexual reproduction Creates sex cells Daughter cells are n

Gametes / Gonads Male ______________ ______________ Female ______________ ______________ Female Asexual organism: All same DNA Sexual organisms: All different DNA

Reproduction MCAS Open Response #2

Review Practice Test (From yesterday)

Homework DNA Edpuzzle Gather science fair supplies Bring $1/person for board