It initially created many more jobs, by enhancing worker productivity through the use of technology (from an electric drill, to a calculator). As technology progressed the tools became more powerful, and it then became more efficient to use more capital and less labour in these industries.
CH 9 1. When a DNA molecule doubles, a chromosome is then made up of two joined _______. Answer: chromatids 2. Prokaryotic DNA molecules are packaged by _______ proteins, which associate with DNA. Answer: basic 3. In general, the division of the cell, called _______, follows immediately upon mitosis.
Remember. 1  The number of chromosomes increases only when sister chromatids separated during anaphase of mitosis and anaphase II of meiosis. Think, in anaphase I of meiosis, only homologous chromosomes are separated. 2  As in the case of DNA molecule, reduction in chromosome number takes place only by cell division.