Reverse transcriptase is:
RNA dependent RNA polymerase
DNA dependent RNA polymerase
DNA dependent DNA polymerase
RNA dependent DNA polymerase
Which one of the following statements about viruses is correct?
Nucleic acid of viruses is known as capsid
Viruses possess their own metabolic system
All viruses contain both RNA and DNA
Viruses are obligate parasites.
Name the organisms which do not derive energy directly or indirectly from sun:
Chemosynthetic bacteria
Pathogenic bacteria
Symbiotic bacteria
Mould
For retting of jute, which fermenting microbe is used?
Mesophilic bacteria
Butyric acid bacteria
Helicobacter pylori
Streptococcus lactis
If all ponds and puddles are destroyed, the organisms likely to be destroyed is:
Leishmania
Trypanosoma
Ascaris
Plasmodium
Mycorrhiza represents:
Antagonism
Endemism
Symbiosis
Parasitism
Who discovered plasmodium in RBC of human beings?
Ronald Ross
Mendel
Laveran
Stephen
Which fungal disease spreads through seeds and flowers?
Loose smut of wheat
Corn stunt
Covered smut of barley
Soft rot of potato
Which of the following parts facilitates excretion in Amoeba?
Pseudopodia
Plasma membrane
Lysosome
Contractile vacuole
Who first used the term 'antibiotic'?
Fleming
Pasteur
Waksman
Lister
