For effective treatment of a disease: 

(1) Early diagnosis is needed but understanding of its pathophysiology is not needed

(2) Early diagnosis is not needed but understanding of its pathophysiology is needed

(3) Early diagnosis and understanding of its pathophysiology are needed

(4) Neither early diagnosis nor understanding of its pathophysiology is needed

A molecular diagnostic technique based on antigen antibody reaction is
A.PCR
b. DNA hybridization
c. ELISA
d. Serum analysis

A single strand of nucleic acid tagged with a radioactive molecule is called

1. vector

2. selectable marker

3. plasmid

4. probe

Conventional methods are not

PCR will allow to detect genetic defects but doesn't involve which of the following steps.

Which is not true about PCR (Polymerase Chain Reaction) ?

1. PCR can amplify very small amount of DNA

2. It can be used to detect HIV in suspects

3. Only RNA can be used as primer

4. Used to detect mutation in genes

Probes are molecules of

Polymerase Chain Reaction is not used in :

1. Confirming presence of a pathogen during early infection

2. Identifying the mutated genes in suspected cancer patients

3. Isolating the gene of interest from host DNA to be cloned by recombinant procedures

4. Detection of the presence of HIV in suspected AIDS patient

A technique used to detect AIDS in suspected patients in very early stages is

1. PCR

2. Autoradiography

3. ELISA

4. DNA hybridization

What is true for molecular diagnosis?

a. It is inexpensive

b. It involves drawing of serum for the test

c. It can be used in the initial stages of the onset of the disease

d. All of the above