In humans, individuals can now undergo gene therapy to correct inherited genetic disorders, by replacing faulty genes with healthy ones. Additionally, the regeneration of damaged tissues and organs through targeted genetic interventions, offers hope to those suffering from debilitating injuries or diseases.

Treatments are also tailored to an individual's unique genetic makeup. This approach allows for more precise diagnoses and therapies, minimizing adverse effects and maximizing therapeutic outcomes.

In the realm of animal, genetically modified livestock are bred to be more resistant to diseases, produce higher yields of meat, milk, or eggs, and require fewer resources for optimal growth. Similarly, genetic engineering has enabled the creation of bioengineered organisms that can remediate environmental pollution or restore ecosystems by metabolizing toxins or enhancing soil fertility.

Overall, the advancements in genetic engineering witnessed in 2139 represent a watershed moment in scientific progress. However, as with any powerful technology, ethical considerations and regulatory oversight are paramount to ensure responsible use for the betterment of society.