SCIE206-1102B-13 Biology

SCIE206-1102B-13 Biology - PartII...

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Part II Punnett Square a. Chances (%) for healthy child, not a  carrier b. Chances (%) for child that is carrier for  cystic fibrosis trait c. Chances (%) for child with cystic  fibrosis Fill out/adapt Punnett Square:  AA Aa Aa aa a. Chances (%) for healthy child, not a  carrier: b. % for child that is carrier for cystic  fibrosis trait: c. % for child with cystic fibrosis: Part III: Essay How do both meiosis and sexual reproduction  (fertilization) produce offspring that differ genetically from  the parents?  Include steps in meiosis that increase variability  Include the process of fertilization. Explanation:  Parents may carry recessive  traits that do not show in their phenotype.  If recessive traits from both parents  combine in fertilization, the offspring will  display a phenotype that neither parent  shows. To increase variablility, Now when a sperm 
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This document was uploaded on 07/25/2011.

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SCIE206-1102B-13 Biology - PartII...

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