Meiosis+Study+Guide

__** Meiosis Learning Objectives **__
 * 1) Explain what meiosis is and describe its two main phases (how).
 * 2) Explain why meiosis occurs, where it happens, and what kinds of cells it produces.
 * 3) Explain crossing-over and how it contributes to the production of unique individuals.
 * 4) Compare the end products of mitosis with meiosis.

__** Here are questions to help you **__ __** Meiosis Video - Requires You Tube **__ media type="youtube" key="qCLmR9-YY7o?list=EC3EED4C1D684D3ADF" height="315" width="560" **__Useful Links__** [|Meiosis Web Activity] [|Cells Alive] [|Meiosis Tutorial] >
 * 1) Humans (and most other animals) have two complete sets of chromosomes. From where were these two chromosome sets initially inherited?
 * 2) If human body cells have 46 chromosomes, how many chromosomes do human gametes have?
 * 3) When fertilization occurs, the sperm and egg cell join, producing a zygote. How many chromosomes do fertilized eggs contain?
 * 4) If an organism has 6 chromosomes in it body cells, how many chromosomes will there be in its gametes?
 * 5) Explain the difference between homologous chromosomes and sister chromatids.
 * 6) After interphase, how many chromatids are there? How many chromosomes?
 * 7) Where does crossing over occur? Why is it important?
 * 8) What lines up during metaphase one?
 * 9) Is there a special order that the chromosomes must line up in? Why or why not?
 * 10) At the end of meiosis I how many cells are there? How many chromatids are in each cell? How many chromosomes?
 * 11) How do the cells at the end of meiosis I compare to each other?
 * 12) Why must the cells produced at the end of meiosis I go through a second round of division?
 * 13) Does crossing over occur during meiosis II?
 * 14) What lines up during metaphase II? What separates?
 * 15) How many cells does meiosis II result in? How many chromosomes are in each of the cells?
 * 16) How do the cells at the end of meiosis compare to each other? How do they compare to the parent cell?
 * 17) How does meiosis compare to mitosis?
 * 18) What would happen if gametes were produced by mitosis instead of meiosis?
 * Meiosis animation: @http://www.rothamsted.bbsrc.ac.uk/notebook/courses/guide/movie/meiosis.htm
 * [[image:http://www.nclark.net/Real_player.gif link="@http://www.real.com/realplayer"]]mitosis and meiosis movies: @http://www.mhhe.com/socscience/anthropology/stein2003/stein.html
 * Meiosis animation: http://www.csuchico.edu/~jbell/Biol207/animations/meiosis.html
 * Comparisons of mitosis and meiosis: @http://www.accessexcellence.org/RC/VL/GG/comparison.php
 * An animated comparison of mitosis and meiosis: @http://www.pbs.org/wgbh/nova/body/how-cells-divide.html
 * Animations with audio of meiosis and the comparison between meiosis and mitosis: http://highered.mcgraw-hill.com/sites/0072437316/student_view0/chapter12/animations.html#
 * Another good meiosis animation: @http://www.johnkyrk.com/meiosis.html