Meiosis Practice

Match the following terms to its description. Diploid Full set of chromosomes Haploid Half a set of chromosomes Gametic Sex cells (sperm and egg) Somatic Body cells (any cell in the body other than sperm and egg) Crossing Over Tetrads exchange segments of DNA to create new genetic combinations Independent Assortment Homologous pairs of chromosomes randomly line up down the equator of the cell, thus creating new genetic outcomes Tetrad Duplicated homologous chromosome pairs Daughter cell Newly created cell at the end of the process. Parent cell Original cell at the beginning of the process. Fill in the blanks to complete the paragraph. Cells that begin meiosis are diploid because they have the full set of chromosomes. These cells have pairs of chromosomes and each pair is called homologous pairs.One of the chromosomes came from the person's mother in the egg, while the other comes from the person's father in the sperm. By the end of the meiosis, the cells that are produced are haploid because they have half a set of chromosomes. Each of the produced gametes or sex cells is genetically different. This uniqueness is due to crossing over, which occurs during Prophase 1 and also from independent assortment which occurs during Metaphase 1. Haploid vs. Diploid Numbers Fill in the missing items on the table Cell Type Total # of chromosomes # in body cells # in sex cells Human 46 46 23 Tomato 20 20 10 Cow 62 62 31 Pineapple 50 50 25 Meiosis2: Fill in the chart with the correct phase. 1) Homologous chromosomes pair up together and crossing over occurs: Prophase 12) Sister chromatids separate and move to opposite ends of the cell: Anaphase 23) 2 daughter cells form; the sister chromatids are still attached to each other: Telophase 14) Homologous chromosomes randomly line up down middle of the cell and independent assortment occurs: Metaphase 15) Homologous chromosomes move towards opposite ends of the cell (sister chromatids are still connected by the centromere): Anaphase 16) Individual chromosomes line up in the middle of the cell: Metaphase 27) 4 unique haploid daughter cells are formed: Telophase 2 Use the following image to answer the multiple choice questions. What is A? Prophase 1 Metaphase 1 Anaphase 1 Telophase 1 Prophase 2 Metaphase 2 Anaphase 2 Telophase 2 What is B? Prophase 1 Metaphase 1 Anaphase 1 Telophase 1 Prophase 2 Metaphase 2 Anaphase 2 Telophase 2 What is E? Prophase 1 Metaphase 1 Anaphase 1 Telophase 1 Prophase 2 Metaphase 2 Anaphase 2 Telophase 2 What is D? Prophase 1 Metaphase 1 Anaphase 1 Telophase 1 Prophase 2 Metaphase 2 Anaphase 2 Telophase 2