Final answer:
Leah's admission of killing a pet in the book 'DNA' may change our perception of her, indicating psychological complexity or thematic symbolism that needs to be understood within the story's context.
Step-by-step explanation:
In the context of the student’s question regarding the character Leah admitting to killing one of her pets in the book DNA , it's important to understand the narrative and the character development entailed. The revelation of this act can indeed alter our perception of Leah significantly. While more context is needed to understand Leah's motivations, killing a pet generally could be seen as an indicator of deeper psychological issues or as a plot device to add complexity to the character. It can invoke various themes like innocence lost, moral ambiguity, or the potential for darkness within. To understand why Leah has done this, one must look at the circumstances and character backstory provided by the author which might explain her behavior and whether it aligns with the themes of the book.