over and independent assortment that occur in meiosis I. Before performing this experiment we hypothesized that we would be able to see that crossing over did indeed occur in the S. fimicola. We tested our hypothesis by growing our own culture and observing it under a microscope. By counting and recording the types of asci we were able to find that our hypothesis had been correct. This has now led us to know that sexual reproduction causes an increase in genetic variation in organisms such as‚ Sordaria
Premium Meiosis Organism Virus
and Fire Bug. Objective : To demonstrate the differences between physical and chemical changes while observing the laws of conservation of matter and energy. Procedure : Watch each part of the experimental demonstration and make predictions about what will happen in each scenario. 1. View the three scenarios listed below. You must observe and analyze these as part of the lab. The Iced Tea Debate The Salty Soup The Fire Bug 2 Use the DATA chart provided for recording observation
Premium Energy Conservation of energy Chemistry
Introduction The purpose of this lab was to identify unknown bacteria cultures using various differential tests‚ and my unknown bacteria is #17. The identification of these unknown cultures was accomplished by separating and differentiating possible bacteria based on specific biochemical characteristics. Whether the tests performed identified specific enzymatic reactions or metabolic pathways‚ each was used in a way to help recognize those specifics and identify the unknown cultures. The differential
Premium Gram staining Staining Microbiology
The Relation of Antiseptics and Bacteria Growth Purpose: To explore the effectiveness of different levels of concentration of antiseptic and antibacterial products’ prevention of bacterial growth. Question: Amongst common household products‚ which antiseptic and level of concentration is more effective at inhibiting the growth of bacteria? Introduction: Antiseptics are antimicrobial substances used on living tissue to reduce the possibility of infection‚ putrefaction or sepsis. The word “anti”
Premium Bacteria Immune system
Abstract Through three different experiments we were to find the quality of NaCl as a deicer. These experiments included testing the freezing point depression of NaCl in solution at two different concentrations‚ testing for the H of an aqueous NaCl solution‚ and combining NaCl with MgCl2 in an aqueous solution to test for freezing point depression. Through these various experiments we found NaCl to be the best deicer for our region due to its proficient freezing point depression and its cost
Premium Sodium chloride Chemistry Concentration
The purpose of the lab is to see if we can make the E.Coli glow and resistant to ampicillin. In the lab we were transforming a north american jellyfish by the name Aequorea victoria to produce GFP‚ which is a fluorescent protein which causes them to glow green only if it has its friend arabinose sugar “ARA” and if it’s under an ultraviolet light . We are expecting to see the bacteria grow and glow when the genetic transformation is completed. Throughout the few days the bacteria on each plate grew
Premium DNA Gene Genetics
tea on the growth of E. coli bacteria cultures Kierstin Barker‚ Melissa Bischak‚ Jackie Tyszkiewicz‚ Errin Enany September 25‚ 2012 Abstract: This study was carried out in order to investigate whether black tea has antimicrobial properties as stated in Steven Johnson’s The Ghost Map. If tea does have antimicrobial properties‚ then it could aid in warding off waterborne diseases. We believed that if black tea is steeped in boiled water‚ then the amount of bacteria exposed to this solution would
Premium Tea Green tea Antimicrobial
Pseudomonas aeruginosa Pseudomonas aeruginosa is the bacteria of my initial unknown project. Determining which bacteria I had was completed by many steps. The one fact that I had‚ was that it was a gram negative bacteria because on the gram stain it appeared pink. Its cell wall is composed of a plasma membrane‚ periplasmic space‚ peptidoglycan and an outer membrane (lipopolysaccharide and protein). By looking at the agar plate it was easy to tell that it was not a swarmer and it did not have any
Premium Bacteria Microbiology Gram staining
Aim: To compare the reactivity of various metals by observing their reaction with hydrochloric acid. Materials: 2 M hydrochloric acid Detergent Test tubes and test tube rack 0.5 pieces of magnesium‚ aluminium‚ iron‚ zinc and cooper Sand paper Ruler Timer Bench mat Method: 1. The surface of the magnesium was cleaned with a piece of sandpaper 2. The Magnesium was placed into a test tube 3. Three Drops of detergent were added to the test tube 4. 2cm of hydrochloric acid was added
Premium Metal Chemical element Periodic table
The Gram Stain (4:15 minutes) Procedure: Include the answers to the questions below in your lab report. Lab Questions: This procedure is used to separate what two types of bacteria? This separation is based on differences in what physical trait? What is the iodine used for in this staining technique? Why is it important to heat fix the bacteria prior to the staining procedure? If you had a bacteria sample that you knew to be gram positive but your gram stain results indicated that it was gram
Premium Gram staining Staining