ࡱ> >@= #bjbj 4:xx     $A<.}}}}}XXXACCCCCCnnC XXXXXC  }}XBBBXR } }ABXABBu}L-n0,hj lXXBXXXXXCCpXXXXXXXXXXXXXXXX : Review Guide for Genetics Name _____________________ Date _____ Period _____ Date of Test: ___________________________ Part I. Mitosis and Meiosis What is mitosis? ______________________________________________________________________ 2. Where does mitosis occur?______________________________________________________________ 3. How many cells does mitosis create? _____________________________________________________ 4. How many chromosomes are in each new daughter cell? ______________________________________ 5. What is meiosis?_______________________________________________________________________ 2. Where does meiosis occur?______________________________________________________________ 3. How many cells does meiosis create? _____________________________________________________ 4. How many chromosomes are in each new daughter cell? ______________________________________ 6. What are the phases of mitosis? __________________________________________________________ 7. What are the phases of meiosis? _________________________________________________________ ______________________________________________________________________________________ 8. Explain what happens in each phase of mitosis. 1. _______________________________________________________________ 2.________________________________________________________________ 3.________________________________________________________________ 4.________________________________________________________________ 5.________________________________________________________________ 9. Who is Gregor Mendel? ________________________________________________________________ 10. Name 5 facts about Gregor Mendel from the reading.________________________________________ ______________________________________________________________________________________ Part II: Define the following: 1. Heredity ____________________________________________________________________________________ ______________________________________________________________________________________________ 2. Dominant trait_______________________________________________________________________________ _____________________________________________________________________________________________ 3. Genes ______________________________________________________________________________________ 4. Recessive trait________________________________________________________________________________ ______________________________________________________________________________________________ 5. Heterozygous traits____________________________________________________________________________ ______________________________________________________________________________________________ 6. Homozygous trait_____________________________________________________________________________ ______________________________________________________________________________________________ 7. Genotype____________________________________________________________________________________ ______________________________________________________________________________________________ 8. Phenotype ___________________________________________________________________________________ ______________________________________________________________________________________________ 9. Incomplete dominance _________________________________________________________________________ _______________________________________________________________________________________________ 10. Codominance _________________________________________________________________________________ ________________________________________________________________________________________________ 11. Punnett square _______________________________________________________________________________ ________________________________________________________________________________________________ 11. traits ________________________________________________________________________________________ 12. allele ________________________________________________________________________________________ ________________________________________________________________________________________________ 13. cross : _______________________________________________________________________________________ Part III Practice Questions: 1. In pea plants, purple flower color (P) is dominant to white (p). Using this information list the genotypes and phenotypes of the following individuals. a. Heterozygous b. Homozygous recessive c. Homozygous dominant 2. What is the probability of producing a homozygous dominant purple flower if there is a cross between a heterozygous pea plant and a homozygous dominant pea plant? 3. Black fur and white fur display incomplete dominance in rabbits. If a black furred rabbit and a white furred rabbit mate, what color will the fu of their offspring be? If those offspring mate, what will their offspring look like? 4. If black fur and white fur in rabbits displayed co-dominance instead, what would the offspring of one black rabbit and one white rabbit look like? 5. What is the probability that a heterozygous male for earlobe attachment and homozygous dominant female will have offspring that have attached earlobes? What is the probability that the offspring will be heterozygous? * Unattached earlobes (E) are dominant to attached earlobes (e)* 6. In cattle, the hornless condition (H) is dominant and the horned condition (h) is recessive. A bull without horns is crossed with a cow with horns. Of the four offspring, one (1) is horned and three (3) are hornless. Determine the genotype of the bull and the cow. 7. In humans, widow's peak (W) is dominant over a continuous hairline (w), and short fingers (F) are dominant over long fingers (f). Two individuals with widow's peak and short fingers have a child with continuous hairline and long fingers. Determine the genotype of the parents. 8. In humans, being right-handed (R) is dominant over being left handed (r). Two right-handed parents with have a son who is left-handed. Determine the genotypes of the son and both parents. What can you tell me about the phenotypes of the parents? 9. How can Punnett Squares and being able to find the probability of passing on a specific trait be helpful for a couple who is having a child? 10. What is the Human Genome Project? What is the purpose of this project? 11. Why are polygenic traits more complicated than traits governed by one gene? Give an example of a polygenic trait. Explain the difference between the phenotypes of polygenic traits and the phenotypes of single gene traits. 12. Why are there so many different shades of eye color, skin color, hair color, etc.? 13. 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