Category: Science - Biology
THE MACHINERY OF INHERITANCE 1 Introduction 1 Cells and Chromosomes 2 Enzymes and Genes 5 Parents and Offspring 8 MUTATIONS 10 Sudden Change 10 Spontaneous Mutations 13 Genetic Load 16 Mutation Rates 19 RADIATION 22 Ionizing Radiation 22 Background Radiation 27 Man-made Radiat...
THE MACHINERY OF INHERITANCE 1 Introduction 1 Cells and Chromosomes 2 Enzymes and Genes 5 Parents and Offspring 8 MUTATIONS 10 Sudden Change 10 Spontaneous Mutations 13 Genetic...
2. Part 2Yet over the eons, creatures have indeed changed, largely through the effects of mutation. If mutations are almost always for the worse, how can one explain that evolution seems...
3. Part 3Thus, an inhabitant of Harrisburg, Pennsylvania, may absorb 2.64 rads per 30 years, while one of Denver, Colorado, a mile high at the foot of the Rockies, may absorb 5.04 rads p...
4. Part 4A second possible explanation is that there is present within the cells themselves some process that tends to repair damage to the genes and to counteract mutations. It might be...