Download CH 12-Patterns of Heredity Study Guide

CH 12-Patterns of Heredity Study Guide
1. Explain how a person inherits a recessive disorder.
2. Explain how a person inherits a dominant disorder.
3. What is a pedigree? ***You also need to know how to read one. See worksheet from Friday 1/17
4. What does it mean to be purebred? Hybrid?
5. What is a genotype? Write an example. What is a phenotype? Give an example.
6. Who is the “father of genetics”? What organisms did he use to create his laws?
7. What are the four basic laws of Mendelian Genetics?
7. If you see a phenotype that is a mixture of two traits, is this codominance or incomplete
dominance? Ex. Red (R) and white (W) flower color produces a pink (RW) flower.
8. If you see a phenotype that is shows both of the two traits equally, is this codominance or
incomplete dominance? Ex. Black (B) and white (W) cats produce a white cat with black spots (BW).
9. What is a sex-linked disorder?
10. Explain X-linked inheritance.
11. What is a dihybrid cross? **Be able to complete and analyze one.
12. What does polygenic inheritance mean? Would eye color and height be an example?
13. In a karyotpe (a map of all of a person’s chromosomes), which ones are autosomes?
14. What are the 8 factors that can also influence gene expression?
****Be able to work out a Punnett square of incomplete dominance or codominance, a dihybrid cross,
and analyze a pedigree for a specific trait. Use ALL of your practice worksheets for reference!
CH 12-Patterns of Heredity Study Guide
1. Explain how a person inherits a recessive disorder.
2. Explain how a person inherits a dominant disorder.
3. What is a pedigree? ***You also need to know how to read one. See worksheet from Friday 1/17
4. What does it mean to be purebred? Hybrid?
5. What is a genotype? Write an example. What is a phenotype? Give an example.
6. Who is the “father of genetics”? What organisms did he use to create his laws?
7. What are the four basic laws of Mendelian Genetics?
7. If you see a phenotype that is a mixture of two traits, is this codominance or incomplete
dominance? Ex. Red (R) and white (W) flower color produces a pink (RW) flower.
8. If you see a phenotype that is shows both of the two traits equally, is this codominance or
incomplete dominance? Ex. Black (B) and white (W) cats produce a white cat with black spots (BW).
9. What is a sex-linked disorder?
10. Explain X-linked inheritance.
11. What is a dihybrid cross? **Be able to complete and analyze one.
12. What does polygenic inheritance mean? Would eye color and height be an example?
13. In a karyotpe (a map of all of a person’s chromosomes), which ones are autosomes?
14. What are the 8 factors that can also influence gene expression?
****Be able to work out a Punnett square of incomplete dominance or codominance, a dihybrid cross,
and analyze a pedigree for a specific trait. Use ALL of your practice worksheets for reference!