The type of immunoglobulin most commonly increased in multiple myeloma is________?

The Dane particle is the________?

Which of the following antibacterial substance is present in eggs and saliva?

Glutaraldehyde is preferred more than formaldehyde because________?

A person working in an abattoir presented with a papule on hand, which turned in to an ulcer. Which will best help in diagnosis________?

The difference between gram positive and negative bacteria lies in their________?