What does random screening involve?

What does random screening involve?

• A. 3-D computer models used to identify binders
• B. Modification of existing drugs
• C. Focused design
• D. Large chemical libraries screened for compounds with useful activity

Answer: (C)

Random screening means testing a very large and diverse set of chemical compounds to find any that show useful biological activity, without bias toward a specific target. It relies on high-throughput screening of thousands to millions of molecules to identify hits that can be optimized further. This approach contrasts with targeted or rational methods, where designs are guided by specific hypotheses about how a compound should interact with a chosen target. The option that describes screening large chemical libraries for compounds with useful activity captures this idea directly. It emphasizes breadth and discovery rather than focusing on a preselected scaffold or design strategy. The other options point to techniques or strategies more aligned with targeted design, lead optimization, or computational screening, which are not the essence of random screening.

Random screening means testing a very large and diverse set of chemical compounds to find any that show useful biological activity, without bias toward a specific target. It relies on high-throughput screening of thousands to millions of molecules to identify hits that can be optimized further. This approach contrasts with targeted or rational methods, where designs are guided by specific hypotheses about how a compound should interact with a chosen target.

The option that describes screening large chemical libraries for compounds with useful activity captures this idea directly. It emphasizes breadth and discovery rather than focusing on a preselected scaffold or design strategy. The other options point to techniques or strategies more aligned with targeted design, lead optimization, or computational screening, which are not the essence of random screening.