The apple never falls far from the tree. He just spit that baby out. A folk expression when it is VERY obvious who the father of a newborn baby is. The foundations of development are heredity and environment.
Heredity supplies our genotype, while heredity and environment combine to form our phenotype.
Chromosomes store and transmit genetic information. Humans have 23 pairs of chromosomes in the nucleus of each cell. DNA molecules make up chromosomes. A gene is a segment of a DNA molecule. Mitosis is the process of cell duplication in which each new cell receives an exact copy of the original chromosomes.