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  1. Hace 18 horas · Genetic engineering, also called genetic modification or genetic manipulation, is the modification and manipulation of an organism's genes using technology.It is a set of technologies used to change the genetic makeup of cells, including the transfer of genes within and across species boundaries to produce improved or novel organisms.. New DNA is obtained by either isolating and copying the ...

  2. en.wikipedia.org › wiki › Middle_AgesMiddle Ages - Wikipedia

    Hace 18 horas · A stained glass panel from Canterbury Cathedral, c. 1175 – c. 1180. It depicts the Parable of the Sower, a biblical narrative. In the history of Europe, the Middle Ages or medieval period (also spelt mediaeval or mediæval) lasted approximately from 500 AD to 1500, although some prefer other start and end dates. The Middle Ages is the second of the three traditional divisions of Western ...