If you suspect a major deficiency of antibodies in a person, to which of the following would you look for confirmatory evidence?

Which one of the following can not be used for preparation of vaccines against plague:

A person likely to develop tetanus is immunised by administering:

1. dead germs

2. preformed antibodies

3. wide spectrum antibiotics

4. weakened germs

The letter T, in T- lymphocyte refers to:

1. thyroid

2. thalamus

3. tonsil

4. thymus

Antibodies in our body are complex:

1. lipoproteins

2. steroids

3. prostaglandins

4. glycoproteins