Tn 4351 was originally isolated from bacteroides fragilis [30] . The transposon was successfully introduced into Cytophaga succinicans, Flavobacterium meningosepticum, Flexibacter canadiansis, Flexibacter strain SFI and Sporocytophaga myxococcoides by conjugation [25]. Tn 4351carries two antibiotic resistance gene. One of the codes for resistance to erythromycin and clindamycin which is expressed in bactroides but not in E.Coli. The other gene codes for resistance in tetracycline and is expressed in aerobically grpwn E. coli, but not in anaerobically grpwn E. coli or in bacteroides.
Beanium Isotope Lab Introduction: Isotopes are explained as the variations of the number of neutrons that an element may have. Some isotopes are more common than others. This experiment was performed to help visualize the different isotopes of an element and show how some isotopes will appear more often than others. Purpose: To visualize and understand isotopes Materials: Refer to Lab Sheet “Isotope Experiment- Beanium”
Introduction For two days, on the 14th and 15th of April, a field excursion to Hastings Point, New South Wales was conducted. At Hastings Point, topography, abiotic factors and organism distribution were measured and recorded, with the aim of drawing links between the abiotic factors of two ecosystems (rocky shore and sand dunes), the organisms which live in them, and the adaptations they have developed to cope with these conditions. Within these two ecosystems, multiple zones were identified and recorded, and this report also aims to identify the factors and organisms associated with each zone. Lastly, using data and observations from the past, predictions for the future of the rock pool ecosystem were made.
Introduction- We did an experiment about different types of movements called kinesis and taxis. Kinesis is the change in the speed of movement or the rate of turning which is intensified by a stimulus (Meyer, 2006). Taxis is movement towards or away from a stimulus (Meyer, 2006). We did our experiment using Sowbugs.
Introduction The bean beetle also known as the Callosobruchus maculatus, is an agricultural pest insect from Africa and Asia. That can be found throughout the tropical and subtropical regions. The lifecycle of a bean beetles is quite short an adult been beetle lays their eggs on the external surface of a bean. The larva hatches from the egg burrows from the egg through the seed coat and into the bean endosperm without moving outside the protection of the egg.
Unknown Lab Report Unknown # 25 By: Jenna Riordan March 19, 2018 Bio 2843 1. Introduction Microbiology is the study of microorganisms found in all different environments throughout Earth, from the hot thermal vents at the bottom of the ocean to the ice at the top of a mountain.
In the BIO 14 Lab, we to designed a competition experiment that would tell us something about the relative fitness of the E939 and E938 strains of E. Coli and that looked into answering whether it was better to have a low or high mutation rate and under what conditions. In our experiment, we looked into what concentration can the E938 strain coexist with the E939 strain in an equal number of colonies. We plated various concentration of the strains (Figure 1) and predicted that the disparity between the growth of each strain will be greater as the concentration of the high mutator increases. Our results did not support this hypothesis, instead it showed that the E938 dominated competition at all concentrations that could be analyzed (Plates D, E & G). It could have been that we needed to dilute E938 even further than 103 cell/mL to see equal competition, but with the given results only the conclusion that can be made is that the high mutator will outcompete
The objective of this experiment was to determine the identity of three unknowns existing in a 1:1:1 mixture. An extraction technique was therefore used to identify the unknown acid, base, and neutral as the compounds must first be separated. Extraction is a method of separation that is based on the difference in solubility of each compound in a mixture. There are a couple of necessary requirements for an extraction to be completed with experimental success. In this extraction there were two liquid solvents used, an original solvent (So), and an extraction solvent (Sx).
Unknown Lab Report Mikee Lianne Gonzales Biol 351- 1005 Holly Martin Unknown: # 76 Abstract This report is about identifying the respective genus of the given unknown organism. The goal is to show and prove the student’s understanding of microbiology and laboratory learned experimental techniques.
Atoms are the basic building blocks of all matter(Doc.3). These small particles have a nucleus and a certain number of protons ,neutrons ,and electrons(O.I). The number of protons is independent to the element, and can be used to find it on the periodic table(Doc.2). Protons are positively charged particles(Doc.3).
The system was run with the power filter, then the fish were introduced to the system. The plants were then installed after two days. The BioMax insert was removed because the plant would replace it. The plant was held up by a sponge insert sitting on top of the activated carbon. The fish were fed and the plants were observed daily.
In this experiment three of the system variables, water temperature, air temperature, and air flow, were changed and compared to a base trial, Trial 1. The variable that effected the system the greatest was temperature. The data collected from this experiment indicates that the most efficient cooling occurs when there is a larger difference between the water and air inlet temperatures. Trial 1, heated water with unrestricted air flow at room temperature, had the largest change in temperature of the water at 2.8⁰C. Additionally, this trial had the best closure of the energy balance by approximately 15%. Trial 3, which had heated air and water with unrestricted air flow, had the worst closure of all of the trials, and the second worst temperature
Atoms are made up of two major sections, the nucleus and the electron cloud. Electrons are found in the electron cloud, and the nucleus is made up of protons and neutrons. Protons are positively charged, while neutrons have no charge, and are slightly more massive than the protons. It used to be thought that protons and neutrons were solid, fundamental particles. It turns out, however, that they are made up of something even smaller.
Particles are labeled in many ways. One way particles are referred to be as atoms (elements). They’re identified by their properties, number or protons and neutrons and atomic number. Another way particles are referred are as molecules (covalently bonded- nonmetal to nonmetal). For example, water is a molecule because it’s composed of nonmetals.
