Nondisjunction-the failure of one or more pairs of homologous chromosomes or sister chromatids usually resulting in an abnormal distribution of chromosomes in the daughter nuclei.
Recessive genes- genes that are less likely to occur
Dominant genes- genes that are more likely to occur
Somatic cell- body cells containing 46 cells
Germ cell- cells that contain half the number of cells than a somatic cell
The Genotype in the 21st chromosome can determine the phenotype by making the person have down syndrome.
Klinefelter's syndrome- A mutation that is caused by genetics and is caused by a extra x or y chromosome
Turner's disease- A mutation caused by genetics that is caused by the absence of an x or y chromosome leaving someone with only
Colorblindness- A mutation in the x chromosome, more commonly in males, that makes someone not be able to tell the difference between colors