Genophore bacterial genome or nucleoid is made of:
Histones and nonhistones
RNA histones
A single double stranded DNA
A single stranded DNA
Which of the following is the vector for sleeping sickness?
House fly
Tse-tse fly
Sand fly
Fruit fly
During the formation of bread, it becomes porous due to the release of CO2 by the action of:
Yeast
Bacteria
Virus
Protozoans
Which of the following environmental conditions is essential for optimum growth of Mucor on a piece of bread?
Temperature of about 250C
Temperature of about 50C
Relative humidity of about 5%
A shady place
Which one of the the following pairs is not correctly matched?
Streptomyces - Antibiotic
Serratia - Drug addiction
Spirulina - single cell protein
Rhizobium - biofertilizer
Entamobea coli causes which disease?
Pyorrhoea
Diarrhea
Dysentery
None of these
Which one of the following statements about viruses is correct?
Viruses possess their own metabolic system
Viruses are facultative parasites
Viruses contain either DNA or RNA
Viruses are readily killed by antibiotics
One gene - one enzyme relationship was established for the first time in:
Neurospora crassa
Salmonella typhimurium
Escherichia coli
Diplococcus pneumoniae
Bacterium, with flagella all over its body is called:
Peritrichous
Monotrichous
Lophotrichous
Amphitrichous
In bacteria, plasmid is:
Extra-chromosomal material
Main DNA
Non functional DNA
Repetitive gene