The review describes AI tools that retrieve scientific information, plan experiments, predict or generate biological sequences, coordinate multistep tasks, and partially automate lab cycles. It says these could benefit medicine, public health, and biotechnology. But it separates digital from physical work: frontier systems have exceeded expert baselines on in-silico and screening-evasion benchmarks, while controlled wet-lab studies find tacit knowledge and physical execution remain substantial barriers. The authors argue for defense-in-depth governance linking capability thresholds to proportionate responsibilities.