Question 17

How did Mendel’s work lay the foundation of modern genetics and what are the principal patterns of inheritance? [Chapter 14]

Gregor Mendel’s Discoveries (read pages 247-255)

1. Mendel brought an experimental method and quantitative approach to genetics.

2. By the law of segregation, the two alleles for a character are packaged into separate gametes.

3. By the law of independent assortment each pair of alleles segregates into gametes independently.

4. Mendelian inheritance reflects rules of probability.

5. Mendel discovered the particulate behavior of genes.

Extending Mendelian Genetics (read pages 255-260)

1. The relationship between genotype and phenotype is rarely simple.

Mendelian Inheritance in Humans (read pages 260-266)

2. Pedigree analysis reveals Mendelian patterns in human inheritance.

3. Many human disorders follow Mendelain patterns of inheritance.

4. Technology is providing new tools for genetic testing and counseling.

John C. Murphy	Science
Phone: (815) 436-3200, ext. 2120
jmurphy@learningcommunity202.org

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