Which of the following could alter the expression of genes in an organism? Select one:

Large numbers of cells being produced at one time.

The deactivation of a particular chromosome in the nucleus.

The loss of cytoplasm from inside of the cell.

A change in the sequence of nitrogen bases in the DNA.

Sarah and john are having a discussion on genetic diversity. sarah believes that it happen over a long period of time. john it happens immediately. who is correct? a. sarah is correct because genetic diversity occurs over a long period of time. b. john is correct because genetic diversity occurs immediately. c. both are correct because genetic variation can occur or long period of time. d. neither are correct because genetic diversity occurs over any period of time