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2008_Study_Sheet_34 - normal with a parent that has partial...

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STUDY SHEET 38 Read and understand  today’s notes.  If there is something you don’t understand, ask  another student, check the book or call Ms. Floyd. Learn  the above notes. (One way to learn is to cover the material and say that material out  loud completely and accurately to yourself.) Test  your learning:  Without looking at your notes , answer the following questions.   Check  your answers in your notes afterward and make any needed corrrections. List.   On the back of this sheet, 1. List four reasons that fruit flies are good organisms to study for genetics.   Short Answer.   On the back of this sheet, solve the following problems.  For each,        show the Punett square, the genotypes and phenotypes for the offspring. 2. Note that sickle cell is incompletely dominant to normal red blood cell shape.  Cross a parent that is 
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Unformatted text preview: normal with a parent that has partial sickle cell. 3. Note that eye color is sex linked in fruit flies AND that red eyes are dominant to white. Cross a white-eyed female with a red-eyed male. 4. In complete sentences, explain why 9% of the African-American population in the US has sickle-cell while 40% of Africans have the disease. 5. In complete sentence(s), explain why males are more apt to show a recessive phenotype than females. Preview o Do the “Quick lab” on page 177. o Read pages 941-943 (Blood Types). o What is the correct term for ‘clumping together’ in regards to mixing blood types....
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