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From Embryo to Tumor: the widespread applications of Epithelial-Mesenchymal Transition
By Briga Mullin, Biochemistry and Molecular Biology, ’15 What do a smoker, a two week old embryo, a child with a broken wrist, and a metastatic tumor all have in common? While these are a diverse group of conditions, they all have cells that are experiencing the same process known as epithelial-mesenchymal transition (EMT). Mesenchymal […]
Viruses and the Global Metabolic Pathway
By Oyang Teng, Biological Sciences ’14 Microbes are the planetary engineers of the biogeochemical cycles that sustain all life on earth. At the molecular scale, the biological turnover of such key elements as hydrogen, carbon, oxygen, nitrogen, iron and sulfur depends on the enzymatic transfer of electrons from reduced (electron-donating) to oxidized (electron-accepting) forms of these […]
Ode to Complementation
By Angelica Degnan, Genetics ’15 Oh complementation testing whatever do you do? How does thee help me explain the mutants true? Begin with two recessive strains Cross, observe, unearth the ones that are the same What does this mean? How do you explain the ones that function redundantly through? Complementation, complementation alas I see the […]
Photography: DNA
By Riley Galton, Genetics ’14 Deoxyribonucleic acid, or DNA, encodes all of the instructions necessary for the beautiful figures and forms that can be found in the biological world. All plants, animals, and humans— subjects that are so familiar to the photographer—share the same underlying, four-letter genetic code. It is this simple molecular code that […]
Arabidopsis – Model Organism
By John Tran, Biochemistry & Molecular Biology ’14 Have you ever wanted to learn more about the plant model organism? Plants have many unique properties that make them especially important to all aspects of life. They provide oxygen, food, and energy, so you could imagine that there are many cellular and molecular processes that are […]
Population Vector
By Jennifer Jahncke, Psychology ’14 Something we talk about a lot in neuroscience in terms of topics like visual perception and locomotion is population vectors. A population vector is the sum of each component vector. In this image, with the trees converging to a vanishing point, the population vector would be the vector in the center […]
When the Last Frog Croaks
By Renata Vidovic, Evolution and Ecology ’15 To some, the phrase climate change evokes images of dry lakes, melting icebergs, and rising oceans. However, the effects of global warming are not simply cataclysmic geological changes. There are links between all biotic and abiotic features of an ecosystem. Unsurprisingly, climate change has an immense impact on […]
Mapping neurons through online gaming
By: Jenny Cade, Biochemistry & Molecular Biology ‘15 One of the biggest challenges in neuroscience today is mapping the wiring of the nervous system. Looking at the spatial arrangement of neural networks can tell us a lot about how information is relayed, but accurate 3D mapping of neurons is an enormously challenging task, even with […]
Evolution of Tooth Enamel
By Marisa Sanchez, Molecular and Cellular Biology, ‘15 One feature that sets humans apart from other primates is the thickness of tooth enamel. Scientists at Duke University have recently discovered evidence on how evolution has resulted in thickened enamel for human teeth. By comparing the human genome to five other primate species, geneticists and evolutionary […]
New Target For Alzheimer’s Treatment
By David Ivanov, Biochemistry and Molecular Biology, ’15 A group of researchers studying brain cells have found a new potential target for pharmacological therapies that may help treat Alzheimer’s disease. Beta amyloid plaque, which appears to be a toxic build up of fragments of amyloid precursor protein (APP) in the brain, has long been associated […]