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Every Batch Of Sperm Represents An Opportunity For Genetic Typos - Called De Novo Mutations - To Be Passed On. A 20-year-old Man And Woman Will Each Pass On About 20 De Novo Mutations To A Baby They Conceive. By The Time The Couple Is 40, A Woman's Total Has Remained At 20, While A Man's Has Jumped To 65 - And It Keeps Climbing From There.
-Jeffrey Kluger
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Every Batch Of Sperm Represents An Opportunity

Jeffrey Kluger
Every Batch Of Sperm Represents An Opportunity For Genetic Typos - Called De Novo Mutations - To Be Passed On. A 20-year-old Man And Woman Will Each Pass On About 20 De Novo Mutations To A Baby They Conceive. By The Time The Couple Is 40, A Woman's Total Has Remained At 20, While A Man's Has Jumped To 65 - And It Keeps Climbing From There.
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