Functions of Taq DNA Polymerase in PCR Reaction

Structure Functions of Light Microscope: 1- Eyepiece or Ocular Lens (Located on the top of the body tube to magnifies the specimen 10X). 2- Objective Lenses (Located on the nose piece at the bottom of the body tube and used in combination with the eyepiece to provide a range of magnification, so, objective lenses 8X or 10X (Shorter Lens) and 100X (Longest Lens) in normal, therefore, (8X= Obtain initial focus on a sample to scan a slide for a point of interest), (10X= Examine any finding closely like mitosis and meiosis divisions), (40X= Examine any finding in a greater details), (100X= Examine in more details the findings), so, for scanning and low power use coarse and fine knob and for high power use fine knob only. 3- Nose-Piece (Located at the bottom of the body tube to hold objective lenses and rotates to enable magnification). 4- Arm and Base (Carry and Support the upper parts and whole body of the microscope by adding one hand on the arm and the other hand on the base). 4- Stage (support the slide which contain specimen or object that are viewing with microscope). 5- Stage Clip (Helps to hold the slide in place to allow light to pass from the light source to the lenses). 6- Light Source (provides light necessary for viewing the specimen by sending the light through the stage opening to the diaphragm). 7- Diaphragm (Wheel or lever located below the stage opening to regulates the amount of light that can enter the lenses). 8- Coarse Adjustment Knob (Raises and lower the stage or objective lenses and used only when focusing the low power objective lens). 9- Fine Adjustment Knob (Raise and lowers the stage or objective lenses as small distance for exact focusing and use when focusing the medium power and high power objective lenses). #geneticteacher