Mendelian Genetics, chromosomal disorders and gene expression Study Guide.docx

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Name: __________________________________ Period: ____________________ Date: _____________ Biology Study Guide Mendelian Genetics, Chromosomal Disorders and Gene Expression Vocabulary Give a brief definition of each of these terms. These words are likely to be used on the exam. 1. Heredity – 2. Character – 3. Trait – 4. True-Breeding – 5. Allele – 6. Dominant – 7. Recessive – 8. Law of Segregation – 9. Genotype – 10. Phenotype – 11. Test Cross – 12. Law of Independent Assortment – 13. Incomplete Dominance – 14. Codominance – 15. Polygenic – 16. Chromosome Theory of Inheritance – 17. Loci – 18. Linked Genes – 19. Recombinant Phenotypes – 20. Sex-Linked Traits 21. Carriers –
Critical Thinking Questions These questions are similar to those on the test. 1. Give an example of a character studied by Gregor Mendel, and the two traits within that character. 2. Use Punnet squares to predict the phenotype and genotype ratios of each of the following crosses: a. A true-breeding homozygous tall pea plant is crossed with a true-breeding homozygous short pea plant. b. Two of the offspring from the previous cross are bred. 3. In the previous question, which was the P generation? The F1 generation? The F2 generation? 4. You choose a tall plant from the F2 generation. You don’t know whether it is homozygous dominant or heterozygous. How could you use a test cross to find out its genotype? Use a Punnet square to predict

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