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A woman who sought genetic counseling is found to be heteroz

Custom Essays biology A woman who sought genetic counseling is found to be heteroz

biology

A woman who sought genetic counseling is found to be heteroz

A woman who sought genetic counseling is found to be heterozygous for a chromosomal rearrangement b… Show more A woman who sought genetic counseling is found to be heterozygous for a chromosomal rearrangement between the second and third chromosomes. Her chromosomes are diagrammed in Fig. 1 on the last page. a. What kind of chromosomal aberration is shown? b. Using a drawing, demonstrate how these chromosomes would pair during meiosis. Be sure to label different segments of the chromosomes. c. This woman is phenotypically normal. Is this surprising or no? Explain. Under what circumstances might you expect a phenotypic effect from such a rearrangement? d. The woman here has had two miscarriages. She has to you, an established genetic counselor, for advice. She has asked the following questions. Is there a genetic explanation for this? Should she abandon her efforts to have a child? If not, what is the probability that her child will be normal? • Show less

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