Which disease of man is similar to cattle's, bovine spongiform encephalopathy:

1.	Encephalitis	2.	Jacob-Creutzfeldt disease
3.	Spongiocitis of cerebrum	4.	Spondylitis

Organisms that obtain energy by the oxidation of reduced inorganic compounds are called:

1. Photo autotrophs

2. Chemo autotrophs

3. Saprozoic

4. Coproheterotrophs

In five kingdom system, the main basis of classification:
1. Structure of the nucleus
2. Nutrition
3. Structure of cell wall
4. Asexual reproduction

Black rust of wheat is caused by:
1. Puccinia
2. Ustilago
3. Albugo
4. Phytophthora

Stored food in fungi:
1. Starch
2. Proteins
3. Glycogen
4. Chitin

Viruses are no more "alive" than isolated chromosomes because:

In which kingdom would you classify the archaea and nitrogen-fixing organism, if the five-kingdom system of classification is used?

Tobacco mosaic virus is a tubular filament of size:
1.  300 × 10 nm
2.  300 × 5 nm
3.  300 × 20 nm
4.  700 × 30 nm

Which one of the following statements about viruses is correct:
1. Viruses possess their own metabolic system
2. All viruses contain both RNA and DNA
3. Viruses are obligate parasites
4. Nucleic acid of viruses is known as capsid

Cauliflower mosaic virus contains:
1.  ss RNA
2.  ds RNA
3.  ds DNA
4.  ss DNA