Final answer:
In a biology lab, all pipetting should be conducted in a Biological Safety Cabinet (BSC) to prevent contamination. BSCs provide a controlled environment and use filters and directional airflow to protect lab workers and containers. BSCs are especially important when working with BSL-1 or BSL-2 bacteria.
Step-by-step explanation:
In a biology lab, all pipetting should be conducted in a Biological Safety Cabinet (BSC).
The BSC provides a controlled environment that protects the lab workers and the containers from contamination. It uses filters and directional air flow to prevent airborne contaminants from entering.
The use of a BSC is especially important when working with bacteria classified as BSL-1 or BSL-2.