Cataracts Facts. 1  Cataracts are changes in clarity of the natural lens inside the eye that gradually degrade visual quality. The natural lens sits behind the colored part of the eye (iris) in the area of the pupil, and cannot be directly seen with the naked eye unless it becomes extremely cloudy.
Hershey and Chase. Alfred Hershey and Martha Chase did an Experiment in 1952 that was called the Hershey-Chase Experiment. This experiment set out to determine what composed the genetic material of a bacteriophage. A bacteriophage is a virus that infects a bacterium.
The Chase (2006 TV series) The Chase is a British television drama series that aired on BBC One between 16 July 2006 and 26 August 2007. It centred on a family run veterinary practice. The show was co-written by Gaynor Faye (credited as Gaynor Mellor), the daughter of the show's creator, Kay Mellor.