From there the Missouri flows east and southeast, ultimately joining the Mississippi River about 10 miles (16 kilometers) north of St. Louis, Missouri. The Missouri River flows through Montana, North Dakota, South Dakota, Nebraska, Iowa, Kansas, and Missouri.
Chromosome theory of inheritance. generalization that genes are located on chromosomes and that the behavior of chromosomes during meiosis and fertilization accounts for inheritance patterns, also states that mendelian genes have specific loci, chromosomes undergo segregation and independent assortment.
Genes are the fundamental unit of heredity. Their function is to instructs body cells to make proteins and determine everything from hair color to susceptibility to disease. They are composed of DNA designed to carry out a single body function and they are located along the chromosomes.