Events
Hans and Zacharias
Janssen invent
microscopeRobert Hooke
observes honeycomb-like
structure in a piece or cork
through microscopeMarcello Malpighi observes
blood capillaries in fish tailsAnton Van Leeuwenhoek
improves microscopesRobert Brown discoveres
nucleus in plant cellsMatthias Schleiden
discoveres that plant
tissues were composed of cellsTheodor Schwann adds
that animal tissues were
also made up of cellsRudolf Virchow forms
the Cell Theory,
which adds on to
Theodor Schwann’s workGregor Mendel studies
peas and discovers heredityFrancis Crick and
James Watson discover
that the shape of DNA
is a double helixWalter Flemming
discovers MitosisThomas Hunt Morgan
establishes chromosome
theory of heridety
Comments