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Genetics - Form IX  DNA From the Beginning - Modules 6-14

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Answer the questions as best you can. The boxes will expand as you type if you need more space. (Don't worry if it is a one word answer. The box size is standard.)


Class Period

1 2 3 4 5 6 7

Read Module 6-Genetic Inheritance Follows Rules  in "Classical Genetics" at DNA From the Beginning

Question 1: For each scientist listed in this section list what were his major accomplishments.

Read Module 7-All cells arise from pre-existing cells

Question 2: Who said "omnis cellula e cellula" and when did he say it?

Read Module 8-Sex Cells have one set of chromosomes; body cells have two

Question 3: In what phase of meiosis do you reduce the number of chromosomes?

Question 4: Why do you need two cell divisions in meiosis?

Read module 9 Specialized chromosomes determine gender

Question 5: If you were to centrifuge (separate by density) a mixture of sperm and eggs why would they separate into layers with the eggs on top, followed by a layer of sperm that would produce sons and then on the bottom a layer of sperm that would produce daughters.

Remember, the boxes will expand as you type if you need more space.

Read module 10- Chromosomes carry genes & module 11 Genes get shuffled when chromosomes exchange pieces.

Question 6: Who first worked on fruit flies and who published the first linkage map?

Read module 12 Evolution begins with the inheritance of gene variations.

Question 7: Define hybrid vigor.

Read module 13 Mendelian laws apply to human beings

Question 8: What is brachydactyly? How did Alexis Romanov die?

Read module 14 - Mendelian genetics cannot fully explain human health and behavior.

Question 9: Do you think that "love of the sea" is a genetically determined trait? What kind of behaviors do you think are genetically determined? What kind of behaviors do you think are NOT genetically determined?



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