In Mendel's experiments, in contrast, there was just one factor that differed between the tall and short pea plants, allowing Mendel to clearly see the underlying pattern of inheritance. In 1868, Mendel became abbot of his monastery and largely set aside his scientific pursuits in favor of his pastoral duties. read more
In one experiment, Mendel cross-pollinated smooth yellow pea plants with wrinkly green peas. (The organisms that are used as the original mating in an experiment are called the parental generation and are marked by P in science textbooks). read more
Gregor Mendel 1822-1884 By the 1890's, the invention of better microscopes allowed biologists to discover the basic facts of cell division and sexual reproduction. read more