Detailed text transcripts for TV channel - DW - 20180423:09:56:00
Passed on from one. generation to the next are not identical during the inheritance process eris and changes take place in the molecular structure these so-called mutations. these small scale changes have made possible the great diversity of life as we know it today which makes at least more recently covered. the mechanisms of d.n.a. replication are not perfect and often lead to errors that i mean it's just enough intersex there are also external factors that can modify the d.n.a. molecules. these include toxic chemicals or radiation from a. lot of your field. all living beings are exposed to ...