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Own every card of: Biology.
Biology studies living things from the cell to the ecosystem. The microscope opened up the world of cells in the 17th century. In the 20th century the discovery of the structure of DNA gave genetics and molecular biology their momentum. Its discoveries touch health as much as farming.
The start of their anecdote. The album's other cards are for you to discover in the game.
by Murray Barr
A study of the nervous system that led somewhere else entirely: in 1948 a Canadian biologist found in the nucleus of female mammals' cells a clump of chromatin specific to them. It is one of the two X chromosomes, inactivated.
Photo: User:Dietzel65, Steffen Dietzel (CC BY-SA 3.0)
by Leonard Hayflick
Human cells do not divide forever. Leonard Hayflick watched cultured cells stop after about 50 divisions and die. As they neared that limit they showed signs of senescence.
Photo: AP Wire photo (Public domain)
by Shinya Yamanaka
A former Japanese orthopaedic surgeon managed to turn ordinary cells into stem cells in the laboratory, able to become any cell of the body. They offer an alternative to human embryonic stem cells.
Photo: National Center for Advancing Translational Sciences from Bethesda, MD (Public domain)
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