<p>Name______Date______Period ______</p><p>Meiosis HW #1</p><p>Directions: Use the terms in the word bank to complete the paragraph below. Some words will not be used.</p><p>A segment of DNA on a chromosome that controls the production of a protein is called a ______. A ______cell contains two copies of each chromosome. A sex cell, or ______, is ______meaning it contains one copy of each chromosome. ______are pairs of chromosomes, one from each parent. ______creates genetic variation by providing new combinations of genes that are different from the parents. </p><p>Directions: Compare meiosis and mitosis by filling in the chart below with the correct answer Mitosis Meiosis Number of times cell is in interphase</p><p>Number of DNA replications</p><p>Number of cell divisions</p><p>Number of daughter cells</p><p>Chromosome number of daughter cells (n or 2n)</p><p>Directions: Use the word bank to correctly complete each sentence. Some words may be used more than once.</p><p>1. In meiosis, one _ cell divides to make ______four ______cells.</p><p>2. A ______cell has half the chromosomes of a ______cell.</p><p>3. Pairs of chromosomes that have genes for the same trait arranged in the same order are ______.</p><p>4. During ______, two divisions of the nucleus and the cytoplasm occur. 5. Prophase I and prophase II are stages in ______.</p><p>6. In ______two identical somatic cells are made.</p><p>7. In ______four different gametes are made. </p><p>Directions: Complete the table below and answer the questions that follow</p><p>Organism Somatic Cells Gametes (2n) (n) Human 46 23 Garden Pea 14 Fruit Fly 16 Tomato 12 Chimpanzee 78 39 Dog 48 Leopard Frog 13 Corn 20</p><p>1. What is the diploid number for a chimpanzee? ______</p><p>2. What is the haploid number for a fruit fly? ______</p><p>3. Which organism has 24 chromosomes in each of it’s body cells? ______</p><p>4. Which organism contains 24 chromosomes in each of it’s egg cells? ______</p><p>Directions: Answer each question on the lines provided. 1. If a male organism has 40 chromosomes in each body cell, how many chromosomes does a female of the same species have in each body cell? ______</p><p>2. How many homologous pairs of chromosomes does the male have? ______</p><p>3. How many chromosomes would be in a sperm cell and in an egg cell? ______</p><p>4. How many chromosomes would be in an offspring? ______</p><p>5. How many pairs of homologous chromosomes would be in an offspring? ______</p><p>Directions: Complete the table by checking the correct column(s) for each description</p><p>Mitosis Meiosis Involves in the production of gametes Involves in growth and repair Promotes genetic variation in organisms Consists of one nuclear division (nucleus divides once) Produces daughter cells that are genetically identical Involves two sets of nuclear division (nucleus divides twice) Produces daughter cells that are not identical Occurs during sexual reproduction Occurs during asexual reproduction Results in four haploid gametes</p>