Consider the electrolytic procedure for purifying copper described in Figure 21.6. Suppose that a sample of copper contains the following impurities: Fe, Ag, Zn, Au, Co, Pt, and Pb. Which of the metals will be oxidized and dissolved in solution and which will be unaffected and simply form the sludge that accumulates at the bottom of the cell?
● DNA Packaging ○ Genome All of DNA in an organism ■ Humans have 46 chromosomes or 23 pairs ■ Chromosomes found in nuclei of cells ○ Gene Segment of DNA that codes for a protein ○ DNA broken down: ■ Histones ■ Nucleosomes ■ Chromatin ■ Chromosome ● How Cells Reproduce ○ Prokaryotic ■ Binary fission The asexual reproduction a prokaryotic cell that results in two nearly identical daughter cells. ○ Eukaryotic cell cycle ■ Mitosis and cytokinesis
