Presentation on theme: "MITOSIS animation. Mitosis Vocabulary Gene – a segment of DNA that codes for a protein or RNA molecule. Chromosome – structure made of DNA and proteins."— Presentation transcript:
Mitosis Vocabulary Gene – a segment of DNA that codes for a protein or RNA molecule. Chromosome – structure made of DNA and proteins on which genes are located Chromatin – long and thin- genetic material in the nucleus during interphase
Chromatids – A shortened and condensed chromosome. Appears during mitosis and meiosis. Sister Chromatids – 2 identical chromatids joined by a centromere Centromere – The place at which sister chromatids are attached Karyotype – a display of all chromosomes arranged according the size, centromere location, and banding pattern.
Homologous Chromosomes- – chromosomes that carry genes for the same traits in the same position along the chromosome Diploid – When a cell contains two sets of chromosomes (2n) Haploid – When a cell, such as a gamete, contains one set of chromosomes (n) Fertilization – The union of an egg and a sperm – (n + n = 2n) Zygote – The fusion of 2 gametes-- a fertilized egg cell (the first cell of a new individual) Gametes – an organisms reproductive cells, such as sperm or egg cells (contain half the number of chromosomes)
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