What is a key focus of animal and plant biotechnology?

The key focus of animal and plant biotechnology lies in improving food sources and developing disease resistance. This area of biotechnology harnesses biological processes and organisms to enhance agricultural productivity and sustainability. For instance, genetic engineering techniques can be employed to develop crop varieties that are more resistant to pests and diseases, thereby ensuring a more reliable food supply. Additionally, the optimization of traits in livestock through biotechnological methods can lead to improved health, productivity, and environmental sustainability in animal farming.

While the other options pertain to important fields, they do not directly relate to the primary aims of animal and plant biotechnology. Analyzing criminal evidence is generally associated with forensic science, creating pharmaceuticals pertains to biopharmaceutical development, and designing medical equipment falls under biomedical engineering. These areas, while significant in their own right, do not encapsulate the specific goals of enhancing agricultural practices and food security that are central to animal and plant biotechnology.