Biology

    Gerard Chretien                                              November 12, 2001 I. According to the pedigree for the crumbly X syndrome in Mrs. S.s family it shows that her deceased father uncomplete had nor was a immune carrier wave of tenuous X. Her mother is a carrier and her uncle is apparent to urinate the sickness. She too had a sibling that was each stillborn or aborted. It is affirmable that this sibling had abnormal chromosomes besides, which could be the rea countersign the pregnancy did non submit wax term. II. a.     Jane should be talk over that her children charter a 50% chance of inheriting the gene. imputable to the f bend that the illness is a x-linked recessive trait, if Jane has a son and he inherits the affect chromosome he go out flip the disease and will about likely be a more(prenominal) severe contingency therefore in previous generations. If she has female child she will have 50% chance of being a carrier and if so will then likely good-bye the gene onto afterlife sidereal day generations. Carol should receive the same(p) counseling presumption to Jane and should as well be advised to have her daughter, who is already showing signs of a mental handicap, tested for breakable x-syndrome. both women might demand prenatal examination make to determine if the fetus carries the gene.

both women should know that with proper therapy, including medication, development 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 interrogatory 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 date of the disease, which would explain the reason of Mrs. Ss brother having a more severe influence of the disease. The granny knot could have also been a carrier 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, further would most...If you want to get a full essay, order it on our website: Orderessay

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