Genetic makeup: A genotype is the genetic composition of variants at a single gene. We have pairs of all 20,000 genes save the X-chromosome. If a genetic disorder is caused by 2 abnormal genes, the genotype analysis will reveal whether zero, one, or two abnormal genes are present. Other disorders are caused by a single abnormal gene, also detected by genotypic analysis.
Answered 7/4/2020
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