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The Miller–Urey experiment was a synthesis of small organic molecules in a mixture of simple gases in a thermal gradient created by heating (right) and cooling (left) the mixture at the same time, with electrical discharges. The Miller–Urey experiment[ 1] (or Miller experiment[ 2]) was an experiment in chemical synthesis carried out in 1952 ...
Griffith's experiment, [ 1] performed by Frederick Griffith and reported in 1928, [ 2] was the first experiment suggesting that bacteria are capable of transferring genetic information through a process known as transformation. [ 3][ 4] Griffith's findings were followed by research in the late 1930s and early 40s that isolated DNA as the ...
Avery–MacLeod–McCarty experiment. The Avery–MacLeod–McCarty experiment was an experimental demonstration by Oswald Avery, Colin MacLeod, and Maclyn McCarty that, in 1944, reported that DNA is the substance that causes bacterial transformation, in an era when it had been widely believed that it was proteins that served the function of ...
Abiogenesis. Stages in the origin of life range from the well-understood, such as the habitable Earth and the abiotic synthesis of simple molecules, to the largely unknown, like the derivation of the last universal common ancestor (LUCA) with its complex molecular functionalities. [ 1]
The Hershey–Chase experiments were a series of experiments conducted in 1952 [ 1] by Alfred Hershey and Martha Chase that helped to confirm that DNA is genetic material. Scientist Martha Chase and Alfred Hershey. While DNA had been known to biologists since 1869, [ 2] many scientists still assumed at the time that proteins carried the ...
Hertz wireless experiments (1887): Heinrich Hertz demonstrates free space electromagnetic waves, predicted by Maxwell's equations, with a simple dipole antenna and spark gap oscillator. Thomson's experiments with cathode rays (1897): J. J. Thomson's cathode ray tube experiments (discovers the electron and its negative charge).