Does our blood have proteases and nucleases?

Yes, our blood does contain proteases and nucleases.

1. Proteases: These are enzymes that break down proteins. They are present in many parts of the body, including the blood. In the blood, proteases play a role in clotting, inflammation, and other processes. For example, thrombin is a protease in the blood that helps with clotting.

2. Nucleases: These are enzymes that break down nucleic acids, like DNA and RNA. They are also present in the blood. Nucleases in the blood can be part of the immune response, helping to break down foreign DNA or RNA from viruses or bacteria.

So, both proteases and nucleases are present in our blood and play important roles in various bodily functions.