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.
Dr. Colleen Winters – BIO 655 Vishall G. Kaistha TITLE: “Recombination-Directed DNA Repair Promote Homologous Stimulating Transcription of Genes That That Preserves Genomic Integrity by MEN1 Is a Melanoma Tumor Suppressor”.
DIY - What Is Life? How can you determine whether something is alive, dead, or non-living? Whenever we speak of life, we must think in terms of cells.
After the results from the three experiments, it has been concluded that Vial B contains the living organisms. This is because in each of the experiments, a characteristic of life was tested. Vial B tested positive and proved that it contained the living organisms.
Cellular Respiration Tatiana Garcia Biology 181 Lab 72256 September 27, 2017 This experiment tested the cellular respiration rate of three different beans to investigate whether or not size effects the production of Carbon Dioxide by using a CO2 sensor. Results of this lab suggested that the size of a bean more than likely has little to no relationship to the Carbon Dioxide concentration and this was found through testing three different species/sizes of beans with a Carbon Dioxide sensor. The original hypothesis was not supported which could be because of a possible faulty sensor or even due to the fact that only 9 grams of lima beans were tested instead of 10 grams like the others. Introduction: Cellular Respiration refers to the biochemical pathway by which cells release energy from the comical bonds and provide energy for the essential processes of life.
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
In the BIO 14 Lab, we attempted to design a competition experiment that will tell something about the relative fitness of two strains of E. Coli being studied (E939 – the standard strain and E938 – the mutator strain). The specific question that is being addressed in our competition experiment is: At what concentration does the E938 strain coexist with the E939 strain in terms of the numbers of colonies (used to approximate population size) on Agar + Rif plates? Most of our group members actually arrived this question at first independently and upon further discussion found that we all were looking to answer the same question. I arrived at this question after noticing some interesting patterns when attempting make two strains in the simulation coexist. I kept the
Ecology 1-Page Report Introduction Ecosystems, ones containing a producer, consumer, and sometimes a predator, can impact the stability of a system. Each organism in the ecosystem plays a key role in interacting with others and maintaining or changing the overall food web. The food web is designed to evolve in a chain reaction progression where the producer produces food for the consumer and the consumer is essentially consumed by the predator if one is present, creating ecosystem stability. Dunaliella is a primary producer in sodium chloride and water environments and is the backbone to the ecosystem created for experiment. Artemia, a small, transparent in color, shrimp, is a consumer of algae and preys on primary producers in the system while hiding from Aiptasia, a dark brown, shelled
In our Ecobottle, tha bacteria in our soil or water will fulfill these processes with the help of the plants (producers) and the cricket and fish (consumers). The last process involved in our lab is the hydrologic cycle. The hydrologic cycle is the transfer of water between the ocean, atmosphere, and land. In our Ecobottle, the terrestrial ecosystem will survive because the moisture from our aquatic ecosystem will rise up (precipitation) and keep the soil fertile and the plant alive. Additionally, the plant will
The brine shrimp were hatched from cysts in seawater and placed in jars, and the algae were contained in large flasks of seawater in various concentrations, for everyone to access. The number of brine shrimp were our independent variable and the algae concentration were our dependent variable. We obtained 6 clean jars for our group in which we created our miniature ecosystems. We labeled each jar with our group name, lab section number, and replicate number. After deciding on what algae concentration we wanted to hold constant in our jars, we calculated the volume of seawater and algae solution required to achieve the desired algae concentration of 50,000 cells/mL and a total volume of 50 mL (C1V1=C2V2).
Since lab reports typically follow APA style formatting, they may include an abstract. An abstract is an one-hundred to two-hundred word summary of the information that the writer(s) have collected from the purpose, method, and discussion of the report. Abstracts are meant to briefly introduce readers of a report to what follows. If an abstract is included, the introduction, also referred to as the purpose of the report, comes next. An introduction is used in a lab report to inform the readers of the reasoning behind the study.
Taisya Gowlovech Bio 110 Dr. Lewis & Dr. Mallowa 29 April 2018 Biology 110 Reflection When I registered for Biology last semester, I really did not think I was going to get much out of it. I thought I simply need to get through the class for SOPHIA credit and move on. I didn't really plan on learning anything useful. I was tired of having to memorize the functions of cells and similar topics that are not really applicable to my life outside the classroom..
Cell Respiration Lab Research Question What is the optimal temperature for germinating pea-seeds where the rate of respiration is the greatest? Background Information Cell Respiration refers to the biochemical process conducted by the cells of an organism that combines glucose and oxygen to produce energy in the form of ATP, along with two by-products, water and carbon dioxide. The equation representing this chemical reaction is shown below. C6H12O6 + 6 O2 6 CO2 + 6 H2O
In cases where filter-feeding shellfish, such as oysters, are cultured in-situ, water quality in ponds and lakes can improve. Also, when agricultural farming operations are sustainably managed, they can help preserve and restore critical habitats, and improve soil health and water quality. But when practiced without care, farming presents the greatest threat to species and ecosystems like soil erosion. In addition, overfishing also break down level of the sea and ecosystem.
The Biotope Aquarium Explained In a biotope aquarium, the aquarist attempt to simulate a natural habitat, assembling fish species, plants, water chemistry and decorations found in that specific ecosystem. A “true” biotope should be a mirror of a natural habitat. There are many good reasons for setting up an aquarium that simulates a natural habitat. Those of us who have done everything, bred everything and kept most fish might simply want a new challenge.
