Ch.+11+Genetics

Book:



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Assignment Due Friday December 3rd Research the following: Codominant Traits 1. What are they? 2. What traits are an example of codominance? 3. Are there any human traits that are codominance, and if so give an example?

Do a Punnett Square for the following crosses. 1. Tt x tt T is dominant for tallness, what is chance of getting tall children? What is the chance of getting short children? 2. TtRr x TtRr T is dominant for tallness, R is dominant for round pea and r is recessive for wrinkly pea. What are the probabilities for all genotypes and phenotypes?

Incomplete Dominance 1. What is it? 2. Give an example of a trait that is incomplete dominance? 3. Are there any human traits that are incomplete dominance, and if so give an example?

Independent Assortment 1. Explain what it is.

ASSIGNMENT DUE MONDAY DEC 6th Research the following: Multiple Alleles 1. Explain what they are. 2. Find two examples of human traits that are controlled by multiple alleles.

Polygenic Traits 1. what are they? 2. Find two examples of human traits that are polygenic traits. 3. Explain the difference between multiple alleles and polygenic traits.

Drosophila Flies 1. Who started using drosophila flies for genetic testing? 2. Why are these flies used so often? 3. What are three things scientists learned about genetics through the study of these flies?

Meiosis 1. What are all the stages of Meiosis and what happens in each stage? 2. Compare and Contrast Mitosis and Meiosis.

MEIOSIS Worksheet