(CNN)Mourners held a heavenly birthday memorial Sunday for Victoria Martens, the 10-year-old New Mexico girl who Albuquerque police say was raped by her mother's boyfriend and then killed while her mother watched.
RNA interference (RNAi) is a natural process that cells use to 'turn off' or silence unwanted or harmful genes. The initial discovery of this phenomenon was in 1991, by scientists trying to deepen the colour of petunias. Surprisingly, by introducing a gene for colour, they found that they had turned off the gene.
The ability of two or more waves to overlap and form a new wave is known as interference. It occurs when two waves meet while traveling through the same medium.... The ability of two or more waves to overlap and form a new wave is known as interference. It occurs when two waves meet while traveling through the same medium. Wave interference causes a new wave to form with a new shape. Constructive interference occurs when the two interfering waves have the same displacement in the same direction. Constructive interference forms a new wave with a larger displacement than the two original interfering waves.