Who died in April 2013

French biologist and geneticist who won the Nobel Prize in Physiology or Medicine for his discoveries concerning genetic control of enzyme and virus synthesis

American comedian, actor, and artist known for his improvisational genius and extensive career in film, television, and stand-up, earning Grammy and Emmy awards

English physiologist and Nobel laureate who pioneered in-vitro fertilisation, leading to the birth of the first 'test-tube baby' and revolutionizing reproductive medicine

British stateswoman and prime minister who served as the longest-serving British prime minister of the 20th century and the first woman to hold the office, known for implementing policies known as Thatcherism

American film critic and author who won the Pulitzer Prize for Criticism and became the nation's most prominent voice in film analysis

German-born British-American author, novelist, and screenwriter, celebrated for her collaborations with Merchant Ivory Productions