How did iodine help? Why do biologists use stain to study cells? With iodine you could see cells better and that is why biologists use stain to see cells. 10. Why would add salt solution to a plant cell to help see the cell membrane?
Viruses are infectious agents, often highly host-specific, consisting of genetic material surrounded by a protein coat. Viruses are not alive, they cannot grow or multiply on their own and need to enter cell and take over the cell to help them multiply. Fungi – these are members of a large group of eukaryotic organisms that includes microorganisms such as yeast and molds, as well as the more familiar mushrooms. Fungi can be single-celled, multinucleated, or multicellular organisms. Although they are eukaryotes like plants and animals, the major difference is that fungal cells have cell walls that contain chitin, unlike the cell walls of plants, which contain cellulose.
I. Title: pGLO Transformation Lab II. Purpose; We want to be able to observe, comprehend and analyze genetic transformation as we genetically alter organisms. III. Hypothesis: If bacteria with + pGLO plasmids that are resistant to the antibiotic ampicillin and have the gene for GFP, colonies with survive and grow on the transformation plates that have LB/ amp.
4. Yeasts are growing in two dishes. You treat one with a chemical that blocks DNA replication but forget to label it. How can you identify the treated dish? One dish will have more visible DNA then the other one, which will show which one was used by the chemical and which dish was not
Purpose In this lab we are trying to get a broader understanding of the transformation of bacteria by exposing them to pBLU plasmids. Introduction Transformation is the manipulation of a bacterial cell's DNA in order to alter the cell's genotype or phenotype by absorbing free DNA from its surroundings. This can result in a nonpathogenic bacteria becoming pathogenic by absorbing the DNA of a broken open or dead pathogenic bacteria. In our case it is taking in the pBLU plasmid. A plasmid is a spherical self-replicating DNA molecule that is not actually a part of the bacterial cell but can integrate itself into the bacterial chromosome.
in nature, the bacteria can transfer these plasmids from bacteria to bacteria, transfering those beneficial genes. this mechanism allows bacteria to adapt to new and foreign environments. the continuous resistance of bacteria to antibiotics is due to the transmission of these plasmids. Bio-Rads unique pGLO plasmid encodes the gene for GFP and a gene for resistance the antibiotic ampicillin. pGLO can also control the gene expression of this fluorecent protein.
Capon meaning is that without water nothing can have a soul. So, if the onion is releasing these juices there must be more to it then just an ingredient. He further expands the complexity of the onion by talking about the inner and outer membrane. By separating the two membranes, we can see how they both give off new light. Once separated, the first membrane we see is thin, translucent, and can be easily removed.
If the bacteria touch your skin or eyes wash it with plenty of water. | tweezers | Low Hazard | Sterilize it in alcohol and wave it in the flame before and after use. | Recording and Processing Data As mentioned earlier on in the portfolio, my data will be presented both quantitatively and quantitative to ensure a good accuracy in the presentation of my investigation through the use of factual data as a result of my own experiment. This will be done by done by presenting my result in a table with reliable data as well as a graph along with its evaluation. The visual analysis of the results of the experiment will also be provided in which my qualitative data will be presenting which includes my own evaluation and observations of the experimental results.
Pros and Cons of Genetic Engineering While genetic engineering can lead to introduction of greater quality traits in organisms, it can also have undesirable side effects. To understand the pros and cons of genetic engineering, read on. The science of indirectly manipulating an organism's genes using techniques like molecular cloning and transformation to alter the structure and nature of genes is called genetic engineering. Genetic engineering can bring about a great amount of transformation in the characteristics of an organism by the manipulation of DNA, which is like the code inscribed in every cell determining how it functions. Like any other science, genetic engineering also has pros and cons.
Genetically Engineered Foods Food is the esscence of life and without it, life would fail to exist; however, the wrong nature of food can lead to the same fatal outcome. Foods that are genetically engineered are based on the premise that foods are made better for humans in many different ways (Eschholz and Rosa 537). Using the latest technology, scientists are able to create crops that are more productive to feed the ever growing population or by introducing new traits into already existing foods to make them overall better; it is easy to see why many people would think that this new technology is just another improvement in everyday lives. When modifying the food, scientists take a gene from one species and insert it into a new species to enhance desired traits such as resistance to herbicides or to provide more nutritional results. This way of improving foods has been taking place traditionally by just crossing two plants together and hoping that the new traits are taken without any negative ones (543).