Meiosis Assessment

Meiosis Assessment: Master meiosis stages and compare it to mitosis!

Match the following phases of meiosis with their descriptions. Prophase 1 Nuclear membrane dissolves, chromatin condenses to chromosomes and the spindle fiber forms. Crossing over occurs now. Metaphase 1 Homologous pairs line up on the equator of the cell Anaphase 1 Homologous pairs separate to opposite sides of the cell as spindle fibers retract into centrioles Telophase 1 The cell membrane pinches in, the nuclear membrane reforms and chromosomes uncoil to chromatin Metaphase 2 Chromosomes line up in the middle of the cell along the equator Anaphase 2 Chromosomes separate to opposite sides of the cell when spindle fibers retract into centrioles Meiosis vs. Mitosis Sort each statement into the meiosis OR mitosis box. Meiosis Sex cells (gametes) are produced Goes through each phase twice Results in 4 daughter cells Daughter cells are haploid Daughter cells are genetically different than the parent cell Homologous chromosomes pair up during prophase Crossing over occurs Mitosis Body (somatic) cells are produced Goes through each phase once Results in 2 daughter cells Daughter cells are diploid Daughter cells are genetically identical to the parent cell Fill in the blanks to complete the paragraph. Cells that begin meiosis are diploid because they have the full number of chromosomes. These cells have pairs of chromosomes. These pairs are called homologous pairs.One comes from the egg (mother) and the other comes from the sperm (father). They have information for the same genes but the information may be different because the information is coming from two different people. By the end of the meiosis, the cells that are produced have the haploid number of chromosomes. 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 Bacteria 4 4 2 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 haploid daughter cells form; the sister chromatids are still attached: Telophase 14) Homologous chromosomes move towards opposite ends of the cell (sister chromatids are still connected by the centromere): Anaphase 15) Sister chromatids line up in the middle of the cell: Metaphase 26) 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 G? Prophase 1 Metaphase 1 Anaphase 1 Telophase 1 Prophase 2 Metaphase 2 Anaphase 2 Telophase 2