Biology Article Isaac Ayers Professor Carol Hoban SCI115012VA016-1136-001 Introduction to Biology August 2, 2013 * The title of the article that I have chosen for this assignment is “The Era of Memory Engineering Has Arrived”. The article begins by explaining a basic plot of a sci-fi movie in which the main character has had his memories altered by scientists using electrode caps. The article then goes into detail about how a new set of experiments, led by MIT neuroscientists
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DNA and Protein Synthesis • Describe the structure of DNA and the steps of protein synthesis. The first stage is transcription, The DNA helix is untwisted by the enzyme dna helixase. Then the DNA is split into two as the hydrogen bonds are broken between the complementary base pairs, The second step is translation, which occurs in the cytoplasm and requires ribosomes. A small ribosomal subunit attaches to the bottom of the mRNA strand, and a large ribosomal subunit to the top of the mRNA
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Evolution Big Idea Project Chris Berg There are many people that are not fully informed about the concept of evolution. Because of this, they are unable to make scientific and logical connections between us humans and how we evolved from the world around us. There are a broad number of misconceptions that people have, but I decided to focus on 3 major ones: 1. Evolution is goal oriented. Many non-evolutionists say that if evolution existed, there would be some endpoint or “goal” that is
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Beta galactosidase is a hydrolase enzyme and it is also known as beta gal. It causes the hydrolysis of the polysaccharides that is it uses the water to break down the sugar molecules in to simpler and smaller compounds such as simple sugars. It acts on different substrates to break it down as it is a catabolic enzyme. The important substrates are lactose, lactoslyceramides, gangliosides and many other glycoproteins but lactose is an important substrate and sometimes this enzyme has been recognized
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This is an annotated list of biological websites, including only notable websites dealing with biology generally and those with a more specific focus. Actionbioscience -- sponsored by the American Institute of Biological Sciences (AIBS) -- providing articles by scientists, science educators, and science students on issues related to seven bioscience challenges: environment, biodiversity, genomics, biotechnology, evolution, new frontiers in science, and bioscience education Animal Diversity
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Deoxyribonucleic acid or DNA is found in basically all organisms including humans. It is the hereditary material that basically every person has and is found in both the cell nucleus and the mitochondria. Most of a person’s DNA is nuclear DNA because it is found in the nucleus; small portions of DNA can also be found in the mitochondria, giving this type the name mtDNA or mitochondrial DNA. DNA has many properties; one of its most important is that it can copy
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Running head: SIGNIFICANCE OF DNA Significance of DNA Significance of DNA Deoxyribonucleic acid (DNA) was first discovered in 1869 by Johann Friedrich Miescher, but it was not until the 1950s while studying viral replication did Alfred Hershey and Martha Chase determine DNA was Genetic material. In 1953 James Watson and Francis Crick discovered DNA was a double helix (a double helix looks like a twisted ladder). The discovery of Watson and Crick opened the door helping describe the significance
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chromosomes). But in addition to the role of division, meiosis has an important role in genetic mixing (miscegenation), thanks to two mechanisms shuffling: the interchromosomal and intrachromosomal shuffling) . Thus, during meiosis, the amount of DNA within the cell varies over time. Each cell will therefore separate genetic heritage (contained in chromosomes) in two to transmit only half of their genes to daughter cells. It takes place in several stages forming a set of two cell divisions
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Human Gene Splicing An aspect of the future I chose was human gene splicing. I got the idea while watching reruns of Batman Beyond with my daughter. In my future scenario, human beings would be able to directly manipulate their genomes through biotechnology, and combine them with other species of animals to alter, enhance and add abilities and traits they do not currently have. In this scenario, human beings would have greater strength and vastly superior senses through the combination of their
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Introduction The profound importance for microorganisms to operate at a maximum efficiency has lead to adaptations allowing for groups of processes to be functional when resources are available, while on the contrary remaining “dormant” when not in need. This has been accomplished at the molecular level by configuring clusters of genes together on the genome into operons that elicit a processive response in the presence of a specific metabolite. The Lac operon is responsible for the cleaving of
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