Select all the statements about mutations that are TRUE: D A. Only DNA can mutate D D. Mutations may be lethal B. Mutations may be neutral E. Mutations may increase an organism's fitness C. DNA mutations occur during anaphase

## Step 1<br />The problem involves understanding the nature of mutations and their effects on organisms. Mutations are changes in the DNA sequence of an organism's genome. They can occur in any type of cell, not just DNA, so option A is incorrect.<br /><br />## Step 2<br />Mutations can indeed be lethal, meaning they can cause the death of an organism. This is because they can disrupt the normal functioning of the organism's cells, leading to cell death. Therefore, option D is correct.<br /><br />## Step 3<br />Mutations can also be neutral, meaning they do not have any noticeable effect on the organism. This is because the change in the DNA sequence may not affect the protein produced, or it may occur in a non-coding region of the DNA. Therefore, option B is correct.<br /><br />## Step 4<br />Mutations can also increase an organism's fitness, meaning they can provide a survival advantage. This is because they can introduce new traits that may be beneficial in certain environments. Therefore, option E is correct.<br /><br />## Step 5<br />DNA mutations do not occur during anaphase. They occur during the S phase of the cell cycle, when DNA replication takes place. Therefore, option C is incorrect.