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Living by the Clock: How DNA Methylation Affects Lifespan

Have you ever wondered why skin cells and liver cells that contain the exact same DNA are so different? The answer is in gene expression. Although skin and liver cells do have the same DNA, different parts of the DNA are expressed in each type of cell. This cell type-specific expression results from different genes being “read” or transcribed by …

Epigenetics: In Defense of Lamarck

Jean-Baptiste Lamarck has long been debunked. Or so the story goes. Lamarck formulated the theory that the environment shapes genes, and that these changes are passed on to your children; on other hand, Darwin argued that genes are not changed by the environment and formulated natural selection. Lamarckian evolution theories on environmentally acquired characteristics are often referenced and contrasted with …

Methylation: The Cause of Brain Tumor?

When one thinks of the word “cancer” breast cancer, lung cancer, and skin cancer are among the various types that first come to mind. One type of cancer that is often neglected is Brain Tumor. According to the National Tumor Society, more than 500 people per day are diagnosed with primary or metastatic brain tumorand what’s worse is that the …