A characteristic is observed in an offspring that is not present in the parents. Which of the following would cause a change in the phenotype of the offspring that was NOT present in the parent?

a mutation during cell replication in the parent body cells
a mutation during cell replication in the offspring sex cells
a mutation during gamete formation in the parent sex cells
a mutation during gamete formation in the offspring body cells

Clara wrote the following hypothesis for an experiment about acidophilic bacteria. bacteria cells will stop dividing in a basic (alkaline) environment because of the high ph. which statement is the best way to restate the hypothesis so that it is more specific? growing acidophilic bacteria in some environments will cause the cells to stop dividing because of ph. if the ph of their environment is changed, acidophilic bacterial cell division will be affected. if the environment of acidophilic bacterial cells becomes alkaline, the bacteria will stop dividing. the more alkaline an environment, the less cell division will occur in bacteria.