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.
During the S phase, the two strands of the DNA helix unwind, separate, and duplicate by the process of replication . By the end of the S phase, each chromosome is composed of two helices of DNA called chromatids , joined at a region of the chromosome called the centromere . Distinct chromosomes are not yet visible during this phase.