SQ Meiosis - 7. Define gamete, somatic cells, zygote. 8....

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Study Questions: Meiosis 1. List the phases of meiosis I and meiosis II and describe the events characteristic of each phase. Recognize the phases of meiosis from diagrams or micrographs. 2. When do homologous xsomes separate? When do sister xtids separate? 3. What is the number of cells and ploidy level of those cells that result when a diploid cell undergoes meiosis? 4. If a cell has 100 micrograms of DNA in G1 of the cell cycle, then undergoes meiosis, how much DNA is in each of the cells after cytokinesis of the second division? 5. Compare mitosis and meiosis, as far as the processes and the outcome of each. 6. Which cells in an organism undergo meiosis? Which cells undergo mitosis?
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Unformatted text preview: 7. Define gamete, somatic cells, zygote. 8. Describe 3 sources of genetic variation in a sexually-reproducing population. 9. Two chromosomes in a nucleus that carry genes for the same traits at the same loci, but specify different versions of the same traits, are called _____________________. 10. Define synapsis, tetrad, and crossing over. 11. Crossing over occurs during which phase of meiosis? 12. Why is crossing over important? 13. What is nondisjunction? What can be the result of it? 14. What are the advantages of asexual reproduction? Disadvantages? 15. What are the advantages of sexual reproduction? Disadvantages?...
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