List of top Plant Sciences Questions on Mycology & Plant Pathology

Arrange the following concepts/principles chronologically from the oldest to the latest. 
• [(A).] Gene-for-gene hypothesis 
• [(B).] Dominance hypothesis 
• [(C).] Transforming principles 
• [(D).] Concept of heterosis 
Choose the correct answer from the options given below: 
 

Given below are two statements: 
• [Statement (I):] Sesbania is used as green manure crop. 
• [Statement (II):] In Sesbania, nodules are formed only on the roots. 
In light of the above statements, choose the most appropriate answer from the options given below. 
 

Which of the following statements is NOT true for Koch's postulates? (or Koch's first postulate)
In a DNA molecule, if 30% of the bases are adenine, what will be the percentage of cytosine bases
Based on following statements, choose the correct combination.
(A). Plasmodiophora brassicae causes clubroot of crucifers
(B). Spongospora subterranean causes powdery scab of potato
(C). Polymyxa graminis is a vector for soilborne wheat mosaic virus
(D). Plasmodiophoromycota are biotrophic parasites
Match List-I with List-II
List-I (Authors):
(A). Alexopoulos, C.J., C.W. Mims, and M. Blackwell
(B). Deacon, J.
(C). Kendrick, B.
(D). Webster, J. and R.W.S. Weber
List-II (publication):
(I). Fungal Biology
(II). Introduction to Fungi.
(III). Introductory Mycology
(IV). The Fifth Kingdom
Which of the following is one of the key adaptive features of fungal spores that aid them in long-distance transmission?
Choose the correct combination of statements about Whiplash and Tinsel flagellum
(A). Whiplash flagellum is directed backward
(B). Tinsel flagellum is directed forward
(C). Whiplash and Tinsel flagellum can not coexist
(D). Whiplash and Tinsel flagellum may coexist
Here is combination of statements about various spores :
(A). Ascospore is an example of Meiospore
(B). Meiospores are a product of meiosis
(C). Basidiospore is an example of Meiospore
(D). Zoospores is an example of Meiospore
Which of the following is NOT a feature of Oomycetes plant pathogens?
Match List-I with List-II

List-I (Fungi) & List-II (Importance)
(A) Pleurotus ostreatus & (I) Phytopathogenic
(B) Magnaporthe oryzae & (II) Entomopathogenic
(C) Rhizophagus irregularis & (III) Edible
(D) Metarhizium & (IV) Mycorrhizal
Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A) : Oomycetes pathogens need high moisture for their dissemination.
Reason (R) : Oomycetes pathogens do produce motile spores during their life cycle.
In light of the above statements, choose the correct answer from the options given below.
Given below are two statements :
Statement (I) : Uredospores are motile.
Statement (II) : Viruses are motile.
In light of the above statements, choose the most appropriate answer from the options given below.
Which one of the following pathogen propagule is adapted for long distance movement by air?
Which one of the following are biotrophic fungi?
(A) Albugo
(B) Puccinia
(C) Glomus
(D) Blumeria
Choose the correct answer from the options given below: