What aspect of genetic identity is a central theme in GATTACA?

The central theme of moral implications surrounding genetic alteration in "GATTACA" deeply resonates throughout the narrative. The film presents a world where genetic engineering is used to determine an individual's identity and potential, raising ethical questions about what it means to be human.

Characters in the story grapple with the societal consequences of genetic manipulation, exemplifying how their fates are predetermined by their genetic makeup. This raises significant issues related to discrimination, autonomy, and the value of an individual's unique experiences versus their genetically predisposed traits.

The film's exploration of these moral dilemmas serves as a critique of a society that prioritizes genetic perfection over personal merit and achievements, ultimately questioning the ethics of playing God through genetic enhancement. This theme prompts viewers to reflect on the implications of altering human genetics and the value of diversity, making it a focal point of the narrative.

In contrast, the other options do not encapsulate the film's core message. While performance enhancement, the importance of family lineage, and the benefits of genetic engineering are elements present in the story, they do not address the profound ethical questions that the film raises about human identity and morality in the context of biotechnology.