genetics_002 - GENETICS 1.:dominance,segregation...

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AP BIOLOGY OUTLINE FOR GENETICS:   GENETICS: 1. Mendelian inheritance: dominance, segregation,     independent assortment 2. Probability 3. Chromosomal basis of inheritance     a. Parallel behavior of genes and chromosomes       b. Sex determination     c. Chromosomal abnormalities     d. Autosomal linkage and sex linkage 4. Epistasis 5. Polygenic Inheritance 6. Multiple alleles, human blood groups 7. Human genetic defects ESSAY QUESTIONS: 1961: A major concept of the gene theory of inheritance is that the genes are located in chromosomes. Explain how each of the following helps to establish this idea: a. A genotypic ratio of 1:2:1 in offspring of heterozygotes. b. The phenomenon of crossing over. c. Other chromosomal aberrations. d. The phenomenon of sex determination, as in man.  1963: a) In corn, a gene for colored (C) kernels is dominant over one for colorless (c)       kernels and a gene for smooth (S) kernels is dominant over one for shrunken       (s) kernels. Describe a controlled genetic experiment to demonstrate that       those genes are linked. b) Genetic evidence indicates that these genes are linked and that their cross       value is approximately 4%. Describe the process of crossing over and explain 
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This note was uploaded on 10/30/2009 for the course SI 0126 taught by Professor Gourney during the Summer '09 term at École Normale Supérieure.

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genetics_002 - GENETICS 1.:dominance,segregation...

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