DNA, short for deoxyribonucleic acid, is present in the nucleus of eukaryotic cells and floats around in the cytoplasm of prokaryotic cells. DNA produces blueprints which RNA carry out to ribosomes to code for protein. You can say that DNA passes genetic material through generations.
Yes, DNA is genetic information that is found in all cells
Exposure to ionizing radiation, exposure to chemicals, or infection by viruses. A mutation is a change in a DNA sequence and can occur during cell devision.
The growth rate of Earth is decreasing, as the birth rate is the main source. The death rate is mostly abortion which tyes in with birth rate. Much types of emigration have been seen. Mostly Asians, because most asian countries only want the boys and not the girls. Trump is thinking of making a wall to stop mexican immigration.