Genetics_Ques - AP BIOLOGY OUTLINE FOR GENETICS: GENETICS:...

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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 how its percentage is determined. (Labeled diagrams may be used as aids in explanation.) 1966: The gene was first thought to be a discrete factor or particle that controls a gross
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This note was uploaded on 01/13/2010 for the course SCIENCE 111 taught by Professor Mckessh during the Spring '09 term at École Normale Supérieure.

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Genetics_Ques - AP BIOLOGY OUTLINE FOR GENETICS: GENETICS:...

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