Gregor Mendel's principles of inheritance form the cornerstone of modern genetics. So just what are ... lot of variation in the measurements of one experiment. A large sample size, or "N," is ...

Mendel was studying genetics by performing mating crosses in pea plants. He crossed two heterozygous pea plants, which means that each plant had two different alleles at a particular genetic position.

Only then did Mendel -- who had worked without a microscope, without computers, but with a thoughtful hypothesis, a carefully designed experiment, and enormous patience -- receive the credit for ...