Amphimixis
Capacitation
Development
Fertilization
Down Syndrome
Edwards Syndrome
Differentiation
Nondisjunction
Sex-Chromosome Abnormalities
Homologous chromosomes fail to separate
Trisomy on Chromosome Pair 18
Also called conception, development begins. Oocyte and spermatozoon fuse together.
Activates sperm. MUST occur before sperm can fertilize secondary oocyte
Gradual modification of Anatomical structures and physiological characteristics from fertilization to maturity.
Trisomy of Chromosome Pair 21
Fusion of female pronucleus and male pronucleus. MOMENT OF CONCEPTION. Fertilization is complete
Specialization of different types of cells required in development
Klinefelter (XXY), Tuner (XO), and Meta-Male (XYY).
