Factors Influencing the Mutation Rate

Within a single organism, the mutation rate of two genes can differ by a thousandfold or more, so within a species some mutations may be very rare and others quite common. Exposures to very high doses of very potent mutagens can increase the mutation rate per generation by more than a hundredfold.

Both the nature of the gene and its environment can influence the mutation rate. The size of the gene, its base composition, its position in the phenotype observable characteristics of an organism

0 0

Post a comment