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Name ______________________________ Class ___________________ Date __________________ HW#_____ Meiosis Review Chapter 3 Section 3 Use complete sentences. USING KEY TERMS 1. Use each of the following terms in the same sentence: meiosis and sex chromosomes. _______________________________________________________________ _______________________________________________________________ In each of the following sentences, replace the incorrect term with the correct term from the word bank. pedigree homologous chromosomes meiosis mitosis 2. During fertilization, chromosomes are copied, and then the nucleus divides twice. _______________________________________________________________ 3. A Punnett square is used to show how inherited traits move through a family. _______________________________________________________________ 4. During meiosis, sex cells line up in the middle of the cell. _______________________________________________________________ UNDERSTANDING KEY IDEAS _____ 5. Genes are found on a. chromosomes. b. proteins. c. alleles. d. sex cells. 6. If there are 14 chromosomes in pea plant cells, how many chromosomes are present in a sex cell of a pea? _______________________________________________________________ Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor. Holt Science and Technology 30 Heredity Name ______________________________ Class ___________________ Date __________________ Section Review continued 7. Draw the eight steps of meiosis on a separate piece of paper and staple it to the back of this page. Be sure to label each phase. (hint- use HO#19 to help) INTERPRETING GRAPHICS Use this pedigree to answer the question below. 8. Is this disorder sex linked? Explain your reasoning. _______________________________________________________________ _______________________________________________________________ CRITICAL THINKING 9. Identifying Relationships Put the following in order of smallest to largest: chromosome, gene, and cell. _______________________________________________________________ _______________________________________________________________ 10. Applying Concepts A pea plant has purple flowers. What alleles for flower color could the sex cells carry? _______________________________________________________________ _______________________________________________________________ Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor. Holt Science and Technology 31 Heredity