(A) Viruses
(B) Mold spores
(C) Bacterial spores
(D) E. coli
Tag: General Microbiology Mcqs
A characteristic of protein synthesis in both the archaea and eukarya is:
(A) Transcription and translation are coupled
(B) Translation is inhibited by diphtheria toxin
(C) Proteins are synthesized from D-, rather than L-, isomers of amino acids
(D) The initiator tRNA is charged with N-formyl-methionine
Various bacterial species can be subdivided into:
(A) Subspecies
(B) Bio-varieties
(C) Sero-varieties
(D) All of these
Which of the following is considered the most unifying concept in biology?
(A) Taxonomy
(B) Anatomy
(C) Genetics
(D) Evolution
Gram staining was introduced by:
(A) Christian Gram
(B) Alfred Gram
(C) Robert Cooke
(D) Louis Pasteur
The feature of the archaea that distinguishes them from the bacteria is:
(A) Habitats which are extreme environments
(B) Absence of a nuclear membrane
(C) Presence of a cell wall
(D) Cytoplasmic ribosomes that are 70S
Which were the scientist lived at the same time?
(A) Koch and Pasteu
(B) Darwin and Woese
(C) Van Leeuenhoek and Ricketts
(D) Berg and Hooke
20 grams of food sample are mixed with 180 ml of water. What will be the dilution?
(A) 10 power-2
(B) 10 power-1
(C) 10 power-3
(D) 10 power-4