3.1 Review And Reinforce
- 1. Name ____________________________ Date ____________________ Class ____________ Genetics: The Science of Heredity ■ Review and Reinforce Mendel’s Work Understanding Main Ideas Study the diagram. Then answer the following questions on a separate sheet of paper. P Generation F1 Generation F2 Generation × × 1. What trait in pea plants is being studied in the cross above? 2. What are the two alleles of this trait? 3. Which allele is the dominant allele? Explain how you know. 4. Which allele is the recessive allele? Explain. 5. What alleles do the F1 offspring have? Explain which allele was inherited from which parent. Building Vocabulary Match each term with its definition by writing the letter of the correct definition on the line beside the term. ____ 6. genetics a. the passing of traits from parents to offspring ____ 7. alleles ____ 8. traits b. an organism with two different alleles for a trait ____ 9. recessive allele c. factors that control traits ____ 10. genes d. physical characteristics of organisms ____ 11. hybrid e. an allele whose trait always shows up in ____ 12. heredity the organism ____ 13. dominant allele f. the different forms of a gene g. the scientific study of heredity h. an allele whose trait is masked in the presence of a dominant allele © Pearson Education, Inc., publishing as Pearson Prentice Hall. All rights reserved.