The protists have

(1) only free nucleic acid aggregates

(2) membrance bound nucleoproteins lying embedded in the cytoplasm

(3) nucleoprotein in direct contact with the rest of the cell substance

(4) none of these

In prokaryotes, genetic recombination can occur during

(1) transduction

(2) transformation

(3) conjugation

(4) all of these

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

(1) Soredia

(2) Isidia

(3) Cyphella

(4) Cephalodia

Viroids have

(1) single stranded RNA not enclosed by protein coat

(2) single stranded DNA not enclosed by protein coat

(3) double straded DNA enclosed by protein coat

(4) double stranded RNA enclosed by protein coat

Which one of the following pairs is correctly matched?

Which one of the following categories of organisms do not evolve oxygen during photosynthesis?

(1) Red algae

(2) Photosynthetic bacteria

(3) C₄ plants with Kranz anatomy

(4) Blue green algae

Which one of the following is correctly matched regarding an Institute and its location?

(1) National Institute of Virology - Pune

(2) National Institute of Communicable Diseases-Lucknow

(3) Central Drug Research Institute-Kasauli

(4) National Institute of Nutrition-Mumbai

Myxomycetes are

(1) saprobes or parasites, having mycelia, asexual reproduction by fragmentation, sexual reproduction by fusion of gametes

(2) slimy mass of multinucleate protoplasm, having pseudopodia-like structures for engulfing food, reproduction through fragmentation or zoospores

(3) prokaryotic organisms, cellular or acellular, saprobes or autotrophic, reproduce by binary fission

(4) eukaryotic, single-celled or filamentous, saprobes or autotrophic, asexual reproduction by fusion of two cells or their nuclei

In prokaryotes, chromatophores are

(1) specialized granules responsible for colouration of cells

(2) structures responsbile for organizing the shape of the organism

(3) inclusion bodies lying free inside the cells for carrying out various metabolic activities

(4) internal membrane systems that may become extensive and complex in photosynthetic bacteria

Among rust, smut and mushroom, two of them 

(1) are pathogens

(2) are saprobes

(3) bear ascocarps

(4)  bear basidiocarps