The petals of a plant Collinsia are normally blue. Two pure breeding lines were obtained from color variants found in nature, the first line had pink petals and the second line had white petals. The following crosses were made between pure lines, with the results shown…Parents F1 F2blue x white […]

When a cell gets to a certain size and has enough organelles and available energy, it may divide into 2 identical cells. This is called Mitosis. Let’s tag along in this process of cellular reproduction and review the different phases the cell goes through starting with Interphase. Each student should […]

1) DNA may be found in various forms in conjunction with the crime scene, the victim, or the offender. Explain the evidence collection and preservation procedures associated with the following evidentiary items: • Liquid Blood• Dried Blood• Other biological fluids (saliva, urine, fecal, tears, ear wax, sweat, vaginal secretions, semen)• […]

1. Consider the solubility rules and identify all of the spectator ions when the following chemicals react: A) lead (II) nitrate and ammonium chloride B) Barium bromide and potassium carbonate. You must show all work (equations) clearly and in detail 2. The sour crystals on some gummi candies are actually […]