Genetic testing is used to screen newborns for genetic diseases, detect persons who are heterozygous for recessive diseases, detect disease-causing alleles in those who have not yet developed symptoms of the disease, and detect defective alleles in unborn babies. Preimplantation genetic diagnosis combined with in vitro fertilization allows for the selection of embryos that are free from specific genetic diseases.
-How does preimplantation genetic diagnosis differ from prenatal genetic testing?
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Q1: Autosomal recessive traits appear with equal frequency
Q2: Autosomal dominant traits appear in both sexes
Q3: Rare X-linked recessive traits appear more often
Q4: X-linked dominant traits affect both males and
Q5: Y-linked traits appear only in males and
Q6: Dizygotic twins develop from two eggs fertilized
Q7: Higher concordance for monozygotic twins compared with
Q8: Similarities between adopted persons and their genetically
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