Percent of human births with autosomal trisomies (mainly down syndrome)

Value 0.14 %
Organism Human Homo sapiens
Reference Griffiths, Anthony JF Miller, Jeffrey H Suzuki, David T Lewontin, Richard C Gelbart, William M. An Introduction to Genetic Analysis (6th ed.)(1996). Chapter 9 Chromosome Mutation II: Changes in Chromosome Number, p.263 Table I, New York: W. H. Freeman. Table - link
Comments Down syndrome (trisomy 21) is produced (between conception and birth) at a frequency almost 20 times higher than in live births.
Entered by Uri M
ID 105366