For this to happen the DNA must replicate itself exactly. When DNA replicates itself and the cell divides both of the new cells that are produced contain the exact same DNA (barring mutations) which means both new cells can code to make the same proteins.
Americium was first produced in 1944 by the group of Glenn T. Seaborg at the University of California, Berkeley. Although it is the third element in the transuranic series, it was discovered fourth, after the heavier curium.
History and Uses: Berkelium was first produced by Stanley G. Thompson, Glenn T. Seaborg, Kenneth Street, Jr. and Albert Ghiorso working at the University of California, Berkeley, in December, 1949.They bombarded an isotope of americium, americium-241, with alpha particles with a device called a cyclotron.he first visible amounts of a berkelium compound, berkelium chloride (BkCl 3) was produced in 1962 and weighed about 3 billionths of a gram (0.000000003 grams).