DOWN SYNDROME. non-disjunction - the failure of homologs or sister chromatids to separate properly to opposite poles during meiosis or mitosis aneuploidy.
Cytogenetics I Numerical chromosomal abnormalities RNDr Z.Polívková Lecture No 430 – course : Heredity.
Heredity, Gene Regulation, and Development Mutation A. Overview.
Changes in Chromosome Number. Chromosome Number Mutations Type of Mutation Difference from wild type chromosome number Aneuploidy Abnormal number of individual.
