Which of the following practices is prohibited in BS-1/BS-2 labs?

In BS-1/BS-2 labs, eating and drinking are strictly prohibited due to the potential risk of contamination and the serious health hazards associated with handling biological materials. These biosafety levels are designed to ensure safety while working with organisms that can pose risks to laboratory personnel and the environment. Consuming food or beverages in the lab increases the likelihood of exposure to pathogens or hazardous substances, which could lead to ingestion and subsequent health issues.

In contrast, the other practices listed, such as wearing gloves, safety goggles, and lab aprons, are essential safety measures aimed at protecting individuals from exposure to potentially harmful biological agents. These practices help minimize the risk of contamination and protect personal health during laboratory procedures. The prohibition against eating and drinking is specifically to prevent any accidental ingestion of harmful agents that may be present in the lab environment.