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Definition: Sarna is a scientific term that refers to a type of protein called S-adenosylcobalamin (SAM). It's an essential nutrient for many bodily functions, including DNA synthesis and cell division. In the context of cancer cells, SAM serves as a signal molecule to activate apoptosis, or programmed cell death, leading to their destruction.
Definition: A virus that is not well-defined or fully recognized by scientists due to its complexity, size, or lack of a specific name. These viruses can cause severe infections and are often associated with diseases like Middle East Respiratory Syndrome (MERS) or Severe Acute Respiratory Syndrome (SARS).
Definition: A Chaetenuissarnavirus is a type of virus that infects fish, specifically by attaching to the skin of the fish and then causing it to shed its skin. This process can be fatal for the fish if not treated promptly.