List of top Plant Sciences Questions on Microbiology

Given below are two statements :
Statement (I) : Phytoplasmas are wall less bacteria.
Statement (II) : Phytoplasma do possess flagella.
In light of the above statements, choose the most appropriate answer from the options given below.
Given below are two statements:
Statement (I): Lichens are the symbiotic associations between a photobiont and a mycobiont partner.
Statement (II): Mycorrhizae are the symbiotic associations between plant root and fungi.
In light of the above statements, choose the most appropriate answer from the options given below.
Which of the following traits are observed in archaea ?
(A) Absence of Peptidoglycan in cell wall
(B) Resistant to kanamycin
(C) Endospore formation
(D) Presence of S layer
Choose the correct answer from the options given below:
Given below are two statements :
Statement (I): Plasma membrane in bacteria is composed of double layer of phospholipid molecules.
Statement (II): Plasma membrane is the site of enzymes involved in energy production in bacteria.
In light of the above statements, choose the most appropriate answer from the options given below.
Given below are two statements:
Statement (I): Saccharomyces cerevisiae used in baking industry is a multicellular fungus.
Statement (II): Both haploid and diploid cells of Saccharomyces cerevisiae may divides asexually by budding.
In light of the above statements, choose the most appropriate answer from the options given below.
Evolutionarily linked Genome Reduction is observed in __________.
(A) Xylella
(B) Phytoplasma
(C) Phytophthora
(D) Magnaporthe
Choose the correct answer from the options given below :
Given below are two statements
Statement I: In Rhizobium- legume symbiosis large and pink colored nodules are considered good for efficient nitrogen fixation
Statement II: Pink color of the nodules is due to the presence of leg-haemoglobin pigment
In light of the above statements, choose the correct answer from the options given below:
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Viruses are termed as obligate intracellular parasites.
Reason R: Viruses cannot reproduce independently, they can grow only inside a living cell.
In light of the above statements, choose the correct answer from the options given below:
Which of the following is/are a part of SARS CoV
A. Presence of Envelope
B. Positive-sense single stranded RNA
C. Spike protein
D. Tail
Choose the correct answer from the options given below:
A bacteriophage genome integrated into the circular bacterial chromosome is known as
Given below are two statements
Statement I: According to Koch’s Postulates, inoculation with disease causing microorganism must be able to produce disease symptoms in the susceptible host
Statement II: According to Koch's Postulates, the microorganism must be recoverable from the diseased host
In light of the above statements, choose the correct answer from the options given below:
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Mycoplasmas are pleomorphic in shape
Reason R: Cell wall in Mycoplasmas is flexible
In light of the above statements, choose the correct answer from the options given below:
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Archaea are insensitive to chloramphenicol antibiotic
Reason R: Archaea do not contain peptidoglycan in the cell wall
In light of the above statements, choose the correct answer from the options given below:
According to the latest classification, Prokaryotes are divided into which two domains?
Given below are two statements:
Statement I: Diazotrophs possess Nitrogenase enzyme that helps in biological nitrogen fixation.
Statement II: Both Rhizobium and Azotobacter are symbiotic nitrogen fixers.

In light of the above statements, choose the correct answer from the options given below:
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Outer membrane in Gram negative bacteria is more permeable than the inner membrane.
Reason R: Porin proteins are present in the outer membrane.

In light of the above statements, choose the correct answer from the options given below:

Match List I with List II 

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Match List I with List II 

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Match List I with List II 

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Match List I with List II 

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Match List I with List II 

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Which of the following belong to Oomycetes
Given below are two statements
Statement I: American grapevine root stock helped the French farmers to control root aphids
Statement II: Root aphid resistant American root stock was also resistant to grapevine downy mildew
In light of the above statements, choose the most appropriate answer from the options given below
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: While alloinfection increases disease incidence, the autoinfection increases the disease severity.
Reason R: Neither autoinfection nor alloinfection is sufficient to cause disease epidemics.
In light of the above statements, choose the correct answer from the options given below
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: In DUS trials, the number and nature of varieties largely determines the use of experimental design.
Reason R: Randomized Incomplete Block Design is the most used experimental design in DUS trials.
In light of the above statements, choose the most appropriate answer from the options given below