Microbiology
Description: MCQ type tests for Bio-Technology(Microbiology) for GATE exam. | |
Number of Questions: 20 | |
Created by: | |
Tags: microbiology Prokaryotic and Eukaryotic Cell Structure Microbial Metabolism Growth and Control Microbiology Nitrogen fixation Microbial Diversity and Characteristic Features; Viruses Chemical Basis of Mutations a Nd Mutagens Biotechnology |
Which of the following proteins is present in 'prokaryotes'?
Which of the following is NOT a characteristic of a prokaryotic genome?
Iron uptake is problematic owing to the insolubility of the Fe 3 + ion (usually in the form of hydroxides). Microbes overcome this difficulty by secreting special high-affinity, iron-binding molecules termed as __________.
“Amongst the eukaryotes, fungi and plants are found to have plasmids, but not animals. ”Which of the following are true for the eukaryotic plasmids?
Whenever bacteria are inoculated into a fresh culture medium, they show characteristic growth curve having four distinct phases. Indicate the phase wherein all the nutrients in the culture medium are used up and the inhibitory end products of metabolism get accumulated.
Which molecule enhances the coupling of anabolic and catabolic reactions in a microbial metabolism?
Which of the following statements is true?
Frankia is a genus of the bacterial group termed as actinomycetes. Which of the following is NOT true for this particular genus?
Who demonstrated the mutational effects of UV radiation?
Biological nitrogen fixation (BNF), discovered by Beijerinck in 1901, is performed by a specialised group of organisms (prokaryotes). These prokaryotes use the enzyme nitrogenase to catalyze the process of transformation of atmospheric nitrogen (N2) to ammonia (NH3). Which of the following organisms can bring about biological nitrogen fixation?
RNA directed DNA polymerase is the other name for
Which of the following viruses does not possess capsid?
Which of the following plasmids is used to reduce the expression of an endogenous gene?
Which of the following are used as intercalating agents in chemical mutation?
Which of the following is a retrovirus?
In case of ribosomes ‘S’ denotes ___________
By which process you can measure the size of a virus?
If an mRNA can be made from the DNA chain having nucleotide sequence 5’TCCAAGTTA3’, the sequence that will be generated in the newly formed mRNA will be ________.
Which of the following features is NOT true for a retrovirus?
Which mutation causes a change in all the amino acids downstream?