Molecular diffusion

Dmitri Iosifovich Ivanovski (1864-1920) was a famous botanist, plant physiologist, and microbiologist (Lechevalier, 1972) who lived in Russia. He is considered one of the founders of virology. Ivanovski also did work with tobacco plants, mosaic disease, soil microbiology, and fermentation. Ivanovski’s life was very interesting. His early years were spent in a small village in Russia. In his later life he went to different universities and participated in many scientific experiments, lectures,…

Kulwant originally wanted to be a plant breeder and had an interest in plant genetics. He loved plants and wanted to do research in developing new plant varieties. Therefore, he got a Masters of Science in Plant Breeding. After University, he worked as a Research Assistant in Pulse Breeding. Then he had to leave his job after only working 9 months to immigrate to Canada. Unfortunately, when he got here he couldn’t find any jobs related to plant breeding, so he was forced to do odd jobs to make a…

DNA Fingerprinting Introduction Background: DNA fingerprinting is one of the great discoveries of the late 20th century,that has revolutionized forensic investigations. (Roewer 2013) The complete DNA of each individual is unique, with the exception of identical twins. It is this difference that can be used by forensic scientists to match specimens of blood , tissue, or hair follicles to an individual with a high level of certainty. A DNA fingerprint, therefore, is a DNA pattern that has a…

Group report Genotyping of Human ABO Blood Group Molecular Biotechnology Fong Fuk Ka (140280041) Liu Ka Hin (140123508) A. Results and analyses 1. Show your gel photos (PCR and RFLP) with clear figure numbers, titles and legends. 1 2 3 4 5 6 7 8 Figure 1 PCR products of two partial segments of ABO locus in human DNA shown on agarose gel from group 6. Well 1 was blank, well 2 was 100bp ladder, well 3 was own sample (5/6), well…

After the judge makes his statement “you are not the biological mother and the children will be placed with their real father”, three children are whisked away screaming for what they have always known as their mother, while police escort a woman in tears out another door never to see her children again because of a biological mystery. This scene was soon going to happen to a few mothers, although the mother in question gave birth to her children science resulted in some questionable evidence.…

Emily Astarita, Amelia Grose, Natalie Krapcho and I’s project is titled “Concentration Quantification and Comparison with the HIC Eluate and Bacterial Lysate.” The overall objectives of this experiments include using a spectrophotometer to obtain absorbance of standard solutions to create a standard curve from this data, and subsequently using the equation of the curve to find the concentration of GFP elute which was purified from the column. Using the spectrophotometer to create a standard…

1.6.3 Hematopoisesis in zebrafish Within the past two decades, the zebrafish (Danio rerio) has become an excellent model to study the development of hematopoietic stem cells (HSCs). The genes and molecular signaling pathways controlling hematopoiesis are highly conserved between fish and mammals. Both share all major blood cell types that are generated from common lineages of hematopoietic stem cells [13]. This is an important advantage over invertebrate models that lack the complex…

Genetic testing is also known as DNA testing. It utilizes laboratory methods to study genes and chromosomes, in order to detect the presence of genetic diseases or the mutant forms of genes associated with high probabilities of developing genetic disorders, to design appropriate treatment. There are different types of genetic tests: Diagnostic testing, carrier testing, prenatal testing, pharmacogenomics testing, Research genetic testing and pre-implantation genetic diagnosis (PGD). Families who…

When you walk into a laboratory of biology, you will see people recording, discussing, and testing. Biology is a science that based on thinking and testing of a theories. Scientists of biology will join together to gather and information in the laboratory, forming a discourse community. A discourse community is a group of people who have common interest and have methods for communicating ways to achieve those goals. According to author Gary D. Schmidt and William J. Vande Kopple in “Discourse…

The second part involves finding the best speed for optimization. Eight different tests will be performed. Four in the first part and four in the second part. Each test will involve about 800 mL of the sample. In the first part, four tests were created of alum concentrations of 0, 5, 20, and 40 mg/L. All were subjected to the stirring apparatus at the same speed of 30 rpm for 15 minutes to allow for flocculation. Initial turbidities were taken before starting the mixing. After being mixed, they…