Chametz is a product that is both made from one of five types of grain, and has been combined with water and left to stand raw for longer than eighteen minutes. Mechirah: selling one's chametz. 2  Until five-twelfths of the way through Passover Eve one may sell or give ones chametz to a non-Jew, and it is no longer one's responsibility. 3  One who keeps the sold chametz in his or her household must seal it away so that it will not be visible during the holiday.
Confidence votes 17. Mendel's principles of genetics are; the principle of segregation (only one allele passes from each parent), the principle of dominance (some alleles are dominant and others are recessive). I think there's only two, I am not sure though.
Gregor Mendel, known as the father of modern genetics, was born in Austria in 1822. A monk, Mendel discovered the basic principles of heredity through experiments in his monastery's garden. His experiments showed that the inheritance of certain traits in pea plants follows particular patterns, subsequently becoming the foundation of modern genetics and leading to the study of heredity.