Biology

    Gerard Chretien                                              November 12, 2001 I. According to the pedigree for the breakable X syndrome in Mrs. S.s family it shows that her deceased father neither had nor was a carrier wave of imperfect X. Her mother is a carrier and her uncle is apparent to urinate the sickness. She too had a sibling that was either stillborn or aborted. It is assertable that this sibling had abnormal chromosomes besides, which could be the rea discussion the pregnancy did non contribute wax term. II. a.     Jane should be advised that her children have a 50% chance of inheriting the gene. Due to the f cultivate that the disease is a x-linked recessive trait, if Jane has a son and he inherits the affect chromosome he depart have the disease and will about likely be a more severe contingency and so in previous generations. If she has daughter she will have 50% chance of being a carri er and if so will then likely pass the gene onto future daylight generations. Carol should receive the same counseling given to Jane and should too be advised to have her daughter, who is already showing signs of a mental handicap, tested for fragile x-syndrome. both women might indispensable prenatal examination done to determine if the fetus carries the gene. twain women should know that with proper therapy, including medication, education and support persons with fragile x-syndrome could act upon improvements to their condition. b.     Carols daughter is under the same risks as her mother and should be given the same advice. Genetic test would be advised for her future husband to clarify if he also is a carrier.            c.     Its possible that Mrs. Ss grandfather had a pre-mutated image of the disease, which would explain the reason of Mrs. Ss brother having a more severe realize of the disease. The granny knot could have also been a carrie r with littler or no mental retardation. ! d.      If Mrs. Ss grandmother was a carrier and passed the mutant allele to the son he would have had the disease, but would most...If you want to get a full essay, order it on our website: OrderCustomPaper.com

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