The following characteristics and uses apply to interferon alpha except for one.. It is a hormone

The following characteristics and uses apply to interferon alpha except for one:

• a- It is a protein
• b- It is obtained from lymphoblastoid source
• c- It is an injectable preparation
• d- It is a hormone***

The correct answer is d) It is a hormone.

Interferon alpha is not a hormone. It is a cytokine, which is a type of signaling molecule that is produced by cells of the immune system. Interferons play a role in the body's defense against viruses and other pathogens.

The other options are correct:

• a) It is a protein is correct. Interferon alpha is a protein, just like all other cytokines.
• b) It is obtained from lymphoblastoid source is correct. Interferon alpha is typically produced in the laboratory using lymphoblastoid cells, which are immortalized B lymphocytes.
• c) It is an injectable preparation is correct. Interferon alpha is available as an injectable preparation that is administered subcutaneously.

So the answer is d) It is a hormone.