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Chapter no 42 – โ€Œโ€Œโ€Œโ€Œโ€Œโ€Œโ€Œโ€Œโ€Œโ€Œโ€Œโ€Œโ€Œโ€Œโ€Œโ€Œโ€Œโ€Œโ€Œโ€Œโ€Œโ€Œโ€Œโ€Œโ€Œโ€Œโ€Œโ€Œโ€Œโ€Œโ€Œโ€Œโ€Œโ€Œโ€Œโ€Œโ€Œโ€ŒGenetics 101โ€Œ

Wonder

Both sides of Dadโ€™s family were Jews from Russia and Poland. Poppaโ€™s grandparents fled the pogroms and ended up in NYC at the turn of the century. Tataโ€™s parents fled the Nazis and ended up in Argentina in the forties. Poppa and Tata met at a dance on the Lower East Side while she was in town visiting a cousin. They got married, moved to Bayside, and had Dad and Uncle Ben.

Momโ€™s side of the family is from Brazil. Except for her mother, my beautiful Grans, and her dad, Agosto, who died before I was born, the rest of Momโ€™s familyโ€”all her glamorous aunts, uncles, and cousinsโ€” still live in Alto Leblon, a ritzy suburb south of Rio. Grans and Agosto moved to Boston in the early sixties, and had Mom and Aunt Kate, whoโ€™s married to Uncle Porter.

Mom and Dad met at Brown University and have been together ever since. Isabel and Nate: like two peas in a pod. They moved to New York right after college, had me a few years later, then moved to a brick townhouse in North River Heights, the hippie-stroller capital of upperย upperย Manhattan, when I was about a year old.

Not one person in the exotic mix of my family gene pool has ever shown any obvious signs of having what August has. Iโ€™ve pored over grainy sepia pictures of long-dead relatives in babushkas; black-and- white snapshots of distant cousins in crisp white linen suits, soldiers in uniform, ladies with beehive hairdos; Polaroids of bell-bottomed teenagers and long-haired hippies, and not once have I been able to detect even the slightest trace of Augustโ€™s face in their faces. Not a one. But after August was born, my parents underwent genetic counseling. They were told that August had what seemed to be a โ€œpreviously unknown type of mandibulofacial dysostosis caused by an autosomal recessive mutation in theย TCOF1ย gene, which is located on chromosome 5, complicated by a hemifacial microsomia characteristic of OAV spectrum.โ€ Sometimes these mutations occur during pregnancy. Sometimes theyโ€™re inherited from one parent carrying the dominant gene. Sometimes theyโ€™re caused by the interaction of many

genes, possibly in combination with environmental factors. This is called multifactorial inheritance. In Augustโ€™s case, the doctors were able to identify one of the โ€œsingle nucleotide deletion mutationsโ€ that made war on his face. The weird thing is, though youโ€™d never know it from looking at them: both my parents carry that mutant gene.

And I carry it, too.

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