Which one of the following viruses contains is a DNA and RNA?

• Cyanophage

• Herpes virus

• Leuko virus

• Polio virus

182.

Edible part of mushroom is

• basidiocarp

• primary mycelium

• fungal hyphae

• basidiospores

Identify the correct sequence of events in the viral replication process.

I. Eclipse

II. Maturation

III. Adsorption

IV. Assembly

V. Penetration

VI. Lysis

• I, II, III, IV, V, VI

• II, I, III, IV, V, VI

• III, V, I, II, IV, VI

• III, V, VI, IV, II, I

Match the items in column I with those in Column II and choose the correct answer.

Column I	Column II
A. Blue- green algae as biofertilizer	1. Ectomycorrhiza
B. Fungi as biofertilizer	2. Thiobacillus sp.
C. Free living nitrogen fixing bacteria	3. Anabaena sp.
D. Phosphate solubilizing bacteria	4. Clostridium sp. 5. Azospirillium sp.

• A- 3; B- 1; C- 5; D- 2

• A- 5; B- 1; C- 2; D- 4

• A- 5; B- 4; C- 1; D- 2

• A- 4; B- 2; C- 4; D- 2

lsogamous condition with non-flagellated gametes is found in

• Chlamydomonas

• Spirogyra

• Volvox

• Fucus

Besides paddy fields, cyanobacteria are also found inside vegetative part of

• Pinus

• Cycas

• Equisetum

• Psilotum

Pigment-containing memberanous extensions in some cyanobacteria are

• heterocysts

• basal bodies

• pneumatophores

• chromatophores

Which of the following are likely to be present in deep sea water?

• Archaebacteria

• Eubacteria

• Blue-green algae

• Saprophytic fungi

Which of the following bacteria is observed as chain-like formation?

• Escherichia coli

• Bacillus subtilis

• Streptococcus pyogenes

• Micrococcus flavus

Which one of the following cocci appears like grapes under microscope?

• Streptococci

• Diplococci

• Staphylococci

• Pneumococci