Briefly, human cancer is traditionally known to occur from heredity or environmental sources, but researchers found errors in the DNA replication of many healthy cells that has an effect on cancer and they called that factor ‘’R’’ or random mutations.
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Our senses are undeniably of the utmost importance in our lives, since they allow us to connect not only with our environment, but also with each other. It is well-known that over centuries, human’s sight has evolved as we started living in a less primitive state. In fact, according to researchers of the 2017 AAAS Annual Meeting in Boston, all three of our sight, smell and taste change depending on the environment we’re in. It was said that although sight problems are genetic, things like artificial lights and “near-work task” affect noticeably our visual acuity.
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