List of top Plant Sciences Questions

Ribosomes are composed of which of the following macromolecular components?
A. RNA
B. Protein
C. Glucose
D. DNA

Given below are two statements:
Statement I: Most economically important plant viruses have only ssRNA as their genetic material.
Statement II: Viruses with ssDNA as their genetic material cause plant disease epidemics.

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

Match List I with List II to identify the correct author for each classic Plant Pathology text:

List I (Book)
A. Basic Plant Pathology Methods
B. Plant Pathology V1: The Diseased Plant
C. Fundamentals of Bacterial Plant Pathology
D. Plant Virology
E. Fundamentals of Plant Virology

List II (Author)
I. R. E. F. Matthews
II. Roger Hull
III. Masao Goto
IV. James G. Horsfall
V. James B. Sinclair, Onkar Dev Dhingra

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Gene for gene interaction can be usually observed in the biotrophic pathosystem.
Reason R: Biotrophs entirely dependent on their host plant to complete their life cycle.

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

What was the plant virus group that triggered Tulipomania in Holland during the 17th century?

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Faster global connectivity is one of the reasons for the reemergence of certain plant diseases.
Reason R: The wheat blast outbreak in Bangladesh was attributed to the host jump from rice to wheat during 2016.

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

Chloroplasts are present in the cells of which of the following organisms?
A. Fungi
B. Algae
C. Plants
D. Animals

Choose the correct statements regarding Nonhost resistance (NHR) and Host resistance in plants:
A. Type I Nonhost resistance does not have visible symptoms
B. Type II Nonhost resistance is always associated with hypersensitive reaction
C. Neither Type I nor Type II Nonhost resistance is useful for resistance breeding
D. Type II Nonhost resistance and Host resistance involve the same signal transduction pathway
E. Only Type I Nonhost resistance is useful for resistance breeding

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Complete absence of false negative results would make a diagnostic kit highly successful.
Reason R: False negatives are due to poor sensitivity of the phenotypic or molecular marker deployed.

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

Given below are two statements:
Statement I: Explosive epidemics are caused by foliar pathogens that are clonally reproduced.
Statement II: Clonal reproduction allows genetically non-identical virulent types.

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

Given below are two statements:
Statement I: PAMPs are coded by highly conserved genetic loci in the pathogen.
Statement II: PAMPs are perceived by highly conserved plant receptors termed as PRRs.

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

Given below are two statements:
Statement I: Mutations in Avr-gene are beneficial for the pathogens.
Statement II: Mutation in the effector coding gene would improve the perception of effectors by plant cytoplasmic receptor.

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: Monocropping of genetically identical crop varieties would enable the pathogen to evolve.
Reason R: Pathogen evolution is rapid in biotrophic interactions.

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

Match List I with List II
List I (Character):
A. Spores/Cells with two anterior, unequal, whiplash flagella
B. Spores/Cells with one posterior whiplash flagellum
C. Spores/Cells with two flagella; one anterior and one posterior
D. Spores/Cells without any flagella
List II (Pathogen):
I. Magnaporthe
II. Phytophthora
III. Synchytrium
IV. Plasmodiophora
Choose the correct answer from the options given below:

Match List I with List II
List I (Powdery mildew Tribe):
A. Tribe Erysipheae
B. Tribe Phyllactinieae
C. Tribe Golovinomyceteae
D. Tribe Cystotheceae
E. Tribe Blumeria
List II (Genera):
I. Blumeria
II. Podosphaera
III. Brasiliomyces
IV. Leveillula
V. Neoerysipheae
Choose the correct answer from the options given below:

Match List I with List II to identify the correct relationship between the fungal structure and its corresponding genus:

List I (Fungal Structure)
A. Pycnidia
B. Naked Hyphae
C. Synemata
D. Acervuli
E. Sporodochia

List II (Genera)
I. Diplodia
II. Cladosporium
III. Trichurus
IV. Melanconium
V. Tubercularia

A. Necrosis manifest in the form of blotch
B. Abnormal growth manifest in the form of warts
C. Necrosis manifest in the form of leaf curl
D. Abnormal growth manifest in the form of anthracnose
E. Witche's broom is caused only by phytoplasma
Choose the correct answer from the options given below:

Match List I with List II
List I (Society):
A. American Phytopathological Society
B. British Society for Plant Pathology
C. German Society of Plant Protection and Plant Health
D. Brazilian Society of Plant Pathology
E. Indian Society of Plant Pathologists
List II (Journal):
I. Plant Disease Research
II. Molecular Plant Pathology
III. Phytobiome Journal
IV. Tropical Plant Pathology
V. Journal of Plant Disease and Protection
Choose the correct answer from the options given below:

Match List I with List II to identify the correct plant disease and its causal Phytophthora species:

List I (Disease)
A. Red Stele
B. Black Pod
C. Black Shank
D. Sudden Death
E. Late Blight

List II (Pathogen)
I. Phytophthora infestans
II. Phytophthora fragariae
III. Phytophthora palmivora
IV. Phytophthora parasitica
V. Phytophthora ramorum

Which of the following pathogen produces sporodochium

In which of the following disease you will find both sign and symptoms together

Sequence of pathogenesis events:
A. Invasion
B. Dissemination
C. Reproduction
D. Infection
E. Inoculation
F. Penetration
Choose the correct sequence from the options given below:

A. Porins allow bacteria to move nutrients and waste across the cell membrane
B. Type III Secretion System (TTSS) allows bacteria to move nucleoprotein complex across the cell membrane
C. EPS is a virulence factor in wilt-causing bacteria
D. LPS allows bacteria to bind to host lectins
E. Hydrolytic enzymes are not virulence factors for bacteria
Choose the correct answer from the options given below:

A. Systemic Acquired Resistance is one of the induced nonspecific resistance systems in plants
B. Induced Systemic Resistance is one of the induced specific resistance systems in plants
C. Hypersensitive Reaction is one of the induced nonspecific resistance systems in plants
D. Hypersensitive Reaction is one of the induced specific resistance systems in plants
E. Induced Systemic Resistance is one of the induced nonspecific resistance systems in plants
Choose the correct answer from the options given below:

Sclerotia of Claviceps purpurea responsible for the infamous St. Anthony's Fire is believed to contain