1. In outbred populations, selection acts on new mutations mainly through their heterozygous effects. 2. In splurge-weed, the new mutation can arise in any cell, in any branch of the plant. 3. It is people like Dawkins who are the new genetic mutations which will spread only if they have superior survival value. 4. It presses new mutations into service as they arise and is just as ready to make do with what is already around. 5. Long-inbred populations might be useful for assessing the effects of new mutations. 6. When necessary, bacteria cheat to ensure a supply of new mutations. 7. Whether his fainting goats were a new mutation or part of an older breed remains unclear. 8. According to geneticist James Crow of the University of Wisconsin at Madison, paternal age is the source of genetic diseases caused by new dominant mutations. 9. Every week, Sweet and other mouse-keepers comb the cages for new mutations, picking up and examining each mouse with gloved hands and tongs. 10. For the moment, the prevalence of the six new mutations in the population remains unknown, as does the risk it confers on those who carry it. |