Biological Classification

The protists have

• only free nucleic acid aggregates

• membrane bound nucleoproteins lying embedded in the cytoplasm

• nucleoprotein in direct contact with the rest of the cell substance

• none of these

Some Gram -ve bacteria have peptidoglycan and an extra layer of

• lipo-polysaccharide

• techoic acid

• cellulose

• both (b) and (c).

The part of mushroom comes out from soil is called

• basidiocarp

• ascogonium

• ascocarp

• pericarp

In Pteridium meiosis takes place at the time of

• spore formation

• organ formation in prothallus

• spore germination

• gamete formation

In Entamoeba histolytica, the presence of chromatid bodies is characteristic of

• precystic stage

• mature quadrinucleate stage

• trophozoite stage

• mature binucleate stage

Mycorrhiza is correctly described as

• symbiosis of algae and fungi

• relation of ants with the stem of some trees

• parasitic association between roots and some fungi

• symbiotic relationship between fungi and roots of some higher plants

Which of the following is an edible fungus?

• Agaricus

• Albugo

• Rhizopus

• Puccinia

Which of the following is non-pathogenic bacteria of colon?

• Escherichia coli

• Balantidium coli

• Entamoeba coli

• Enterobius vermicularis

Which of the following structures helps in the respiration of lichens?

• Soredia

• lsidia

• Cyphella

• Cephalodia

Blue- green algae is found in

• Cycas

• Pinus

• Scales of Marchantia

• Riccia