2 Mitosis Vocabulary Gene Chromosome Chromatin a segment of DNA that codes for a protein or RNA molecule.Chromosomestructure made of DNA and proteins on which genes are locatedChromatinlong and thin- genetic material in the nucleus during interphase
3 Chromatids Sister Chromatids Centromere Karyotype A shortened and condensed chromosome. Appears during mitosis and meiosis.Sister Chromatids2 identical chromatids joined by a centromereCentromereThe place at which sister chromatids are attachedKaryotypea display of all chromosomes arranged according the size, centromere location, and banding pattern.
4 Homologous Chromosomes- chromosomes that carry genes for the same traits in the same position along the chromosomeDiploidWhen a cell contains two sets of chromosomes (2n)HaploidWhen a cell, such as a gamete, contains one set of chromosomes (n)FertilizationThe union of an egg and a sperm(n + n = 2n)ZygoteThe fusion of 2 gametes-- a fertilized egg cell (the first cell of a new individual)Gametesan organisms reproductive cells, such as sperm or egg cells (contain half the number of chromosomes)
5 Mitosis nuclear division the same number of chromosomes are distributed into each nucleus.The chromosome # in the original cells and the resulting cells stays the same…WHY???animation