Name __________________________________________ Mrs. Geithner-Marron (Bio 300) Date _______________ Period _____________ Unit 7 Cellular Reproduction (Mitosis and Meiosis) Review/List of Topics to Know Life from Life—Cells from Cells (Biogenesis) What was Redi’s “maggots from meat” experiment? Why was it important? What was Pasteur’s experiment? Why was it important? What is the “theory of biogenesis”? What was the “theory of abiogenesis” (spontaneous generation)? Cell Size & Cell Division Why are cells small? How do cells stay small? What must happen before a cell divides? Why? Why else do cells divide (besides staying small)? Cellular Reproduction in Prokaryotes How do prokaryotes reproduce? (Name of method & steps of process) How do the “daughter cells” compare to each other and to the parent cell? Cellular Reproduction in Eukaryotes Diploid vs. Haploid o What does “diploid” mean? o How do we indicate that a cell is “diploid”? o What types of cells are diploid? o What does “haploid” mean? o How do we indicate that a cell is “haploid”? o What types of cells are haploid? Name __________________________________________ Mrs. Geithner-Marron (Bio 300) The Cell Cycle o What are the 3 main phases of the cell cycle? o Which phase lasts the longest? o Trick to remember phases of cell cycle? Interphase o What is happening in the cell? o DNA is in which form? o What happens before mitosis begins? What is a sister chromatid? What is a centromere? Mitosis o Occurs in which types of cells? o How many times does the cell divide (during one cycle)? o What is the end result of mitosis? o What is the function of mitosis? o The phases (steps) of mitosis: Prophase What happens during…? Draw a diagram of what the cell looks like. Metaphase What happens during…? Draw a diagram of what the cell looks like. Anaphase What happens during…? Draw a diagram of what the cell looks like. Telophase What happens during…? Draw a diagram of what the cell looks like. Cytokinesis o When does cytokinesis start? o What happens during…? o …difference between plant & animal cells? o Draw a diagram of what the cell looks like. Continued on next page. Date _______________ Period _____________ Name __________________________________________ Mrs. Geithner-Marron (Bio 300) Date _______________ Period _____________ Meiosis o Occurs in which types of cells? o How many times does the cell divide (during one cycle)? o What is the end result of meiosis? … in males? … in females? o What is the function of meiosis? o What would happen if the chromosome # wasn’t reduced by ½ during meiosis? o How does meiosis promote genetic variation? o What is a zygote? o What are the stages of meiosis (and stage before and after)? o What is the major difference between meiosis 1 and meiosis 2? o What are homologous chromosomes (“homologous pairs”)? o The phases (steps) before, during, and after meiosis: Interphase What happens during…? Draw a diagram of what the cell looks like. Meiosis 1: Prophase 1 What happens during…? Draw a diagram of what the cell looks like. What is “synapsis”? What is a tetrad? What is crossing over? Meiosis 1: Metaphase 1 What happens during…? Draw a diagram of what the cell looks like. What is “independent assortment”? o What is the result of “independent assortment”? Meiosis 1: Anaphase 1 What happens during…? Draw a diagram of what the cell looks like. Meiosis 1: Telophase 1 What happens during…? Draw a diagram of what the cell looks like. Cytokinesis 1 When does cytokinesis 1 start? What happens during…? …difference between plant & animal cells? What is formed? Draw a diagram of what the cell looks like. Name __________________________________________ Mrs. Geithner-Marron (Bio 300) Does replication occur before meiosis 2? Where does meiosis 2 happen? Meiosis 2: Prophase 2 What happens during…? Draw a diagram of what the cell looks like. Meiosis 2: Metaphase 2 What happens during…? Draw a diagram of what the cell looks like. Meiosis 2: Anaphase 2 What happens during…? Draw a diagram of what the cell looks like. Meiosis 2: Telophase 2 What happens during…? Draw a diagram of what the cell looks like. Cytokinesis 2 When does cytokinesis 1 start? What happens during…? …difference between plant & animal cells? What is formed? What does each new cell end up with? Draw a diagram of what the cell looks like. Genetic Recombination in Gametes How does meiosis promote genetic variation? o What is independent assortment? o What is genetic recombination? Fertilization What is fertilization? What is formed by fertilization? What happens to the chromosome # after fertilization? Date _______________ Period _____________