R4RIN – MCQs, Mock Tests | Botany Botany MCQS[NEET-2021 to 2022]-Plant Pathology

Which of the following is odd one

1. Lance nematode = Pratylenchulus
2. Lesion nematode = Pratylenchulus
3. Sting nematode = Belonolaimus
4. Awl nematode = Dolichodorous

✅ Correct Answer: 1

Didelphic means nematodes with which of the following ?

1. One ovary
2. Two ovaries
3. Three ovaries
4. None

✅ Correct Answer: 2

Which among the following Spermatheca is found in the nematode body of?

1. Male
2. Female
3. A and B
4. None of these

✅ Correct Answer: 2

A bacterium is devoid of

1. Chlorophyll
2. Well defined nucleus
3. Cell Wall
4. None

✅ Correct Answer: 2

A virus particle with both nucleic acid and protein coat is called as

1. Virion
2. Viriod
3. Capsid
4. All above

✅ Correct Answer: 3

Agallol is used for

1. Seed treatment
2. Soil treatment
3. Crop spray
4. Aerial spray

✅ Correct Answer: 1

Agar-agar is produced from which of the following ?

1. Nostoc
2. Macrocrocystis
3. Gelidium
4. Oscillatortia

✅ Correct Answer: 3

Which of the following is a Albugo?

1. Obligate parasite
2. Facultative parasite
3. Saprophyte
4. Predator

✅ Correct Answer: 1

Ryat is a which type of Parasite?

1. Obligate
2. Saprophyte
3. Facultative
4. Predator

✅ Correct Answer: 1

Which of the following was discovered by Alexander Fleming (1929)

1. Tyrocidine
2. Streptomycetease
3. Penicillin
4. Giseofulvin

✅ Correct Answer: 2

Alternate host of black stem rust of wheat

1. Mohania
2. Thalictrum
3. Barberry
4. All above

✅ Correct Answer: 3

Anterior tinsel flagellum is characteristics of

1. Chytridiomycetes
2. Hypochytridiomycetes
3. None of these
4. A and B

✅ Correct Answer: 1

Association of fungi with roots of higher plants is known as

1. Lichen
2. Mycorrhiza
3. Ascolichen
4. Basidiolichen

✅ Correct Answer: 2

proposed a classification of fungi which is now widely accepted

1. Walker (1957)
2. Stakman & Harrar (1957)
3. Whittaker (1969)
4. Ainsworth (1973)

✅ Correct Answer: 4

Which of the following is the shape of Bacilli

1. Spiral shaped
2. Spherical shaped
3. Rod shaped
4. None of the above

✅ Correct Answer: 3

Bacterial cell surrounded by which of the following flagella?

1. Monotrichous
2. Lophotrichous
3. Amphitrichous
4. Peritrichous

✅ Correct Answer: 4

Brassicol is fungicide

1. Murcurious
2. Sulphur
3. Cu
4. Miscellaneous

✅ Correct Answer: 4

Bacterial leaf blight of rice caused by Xanthomonaso ryzae can be identified by

1. Wilting of the plant
2. Yellowing of leaves
3. Ooze test
4. Defoliation

✅ Correct Answer: 2

Bengal famine was caused due to which of the following?

1. Phytophthora infestans
2. Drechslera oryzae
3. Puccinia graminis tritici
4. Heterodera avenage

✅ Correct Answer: 2

The deficiency of which of the following caused Black heart of potato

1. Boron
2. Zinc
3. Iron
4. Oxygen

✅ Correct Answer: 4

Black stem rust of wheat caused by which among the following?

1. Puccinia graminis tritici
2. Puccinia recondita
3. Puccinia striformis
4. Ustilagotritici

✅ Correct Answer: 1

Which of the following caused Black tip of mango ?

1. Phythium
2. Phytosynthetas
3. Boron deficiency
4. Zinc deficiency

✅ Correct Answer: 3

Which of the following is the cause of Blast of rice?

1. Xanthomonas
2. Drechslera oryzae
3. Pyricularia
4. Cercospora

✅ Correct Answer: 3

Plant Pathology is word

1. English
2. Latin
3. Greek
4. Mandarin

✅ Correct Answer: 3

Bordeaux mixture was discovered by P.A. Millardet of France during the year 1882 following his chance observation of farmers practice for protection against

1. Plasmopara viticola on grapevine
2. Uncinula nectar on grapevine
3. Podosphaera leucotricha on apple
4. Venturia inequalis on apple

✅ Correct Answer: 1

Botulism is caused by which species

1. Bacillus
2. Pseudomonas
3. Agrobacterium
4. Clostridium

✅ Correct Answer: 4

Brown spot of maize is caused by which among the following ?

1. Sclerospora sorghi
2. Physoderus zeamaydis
3. Alternaria solani
4. Cercospora perfonats

✅ Correct Answer: 2

By 1857, Barkley and Schacht discovered root knot nematodes and cyst nematode in which of the following?

1. Sweet sorghum
2. Sugarcane
3. Potato
4. Sugarbeet

✅ Correct Answer: 2

Carborundum powder is

1. Silicon carbide
2. Aluminium oxide
3. Diatomaceous earth
4. Calcium carbonate

✅ Correct Answer: 1

The shaped of Cocci are

1. Spiral shaped
2. Spherical shaped
3. Rod shaped
4. None of the above

✅ Correct Answer: 2

Coffee rust is caused by

1. Uromyces hobsoni
2. Hemileia vastatrix
3. Cronartium ribicola
4. Ravenelia-emblicae

✅ Correct Answer: 2

Conidia and sporangia are the spores produced by

1. Bacteria
2. Viruses
3. Fungi
4. Phanerogams

✅ Correct Answer: 3

Crystalization of viruses has done by

1. Mayer
2. Stanley
3. Iwanowski
4. Bejerinck

✅ Correct Answer: 2

Cysts are formed by

1. Meloidogyne
2. Aphelenchoides
3. Heterodera
4. None of the above

✅ Correct Answer: 1

Death of tissue in virus infected plant described as

1. Mottling
2. Mosaic
3. Necrosis
4. Curling

✅ Correct Answer: 2

Disease symptoms known as phyllidy in sesamum are caused by

1. Bacterium
2. Fungus
3. MLO
4. Virus

✅ Correct Answer: 3

Dithane M-45 is a

1. Bactericide
2. Insecticide
3. Fungicide
4. Nematicide

✅ Correct Answer: 3

Domestic quarantine exists on

1. Rice blast
2. Red rot of sugarcano
3. Wart of potato
4. Run of wheat

✅ Correct Answer: 3

Downy mildew of maize is caused by

1. Peronosclerspora sacchari
2. Peronospora triognella
3. Sclerospora graminicola
4. Sclerospora sacchari

✅ Correct Answer: 1

Whittaker (1969) proposed a kingdom System of Classification of Micro-organism

1. 4
2. 5
3. 6
4. 8

✅ Correct Answer: 2

Exclusion of plant disease by legislation is known as

1. Disease resistance
2. Plant quarantine
3. Biological control of plant
4. Cultural control

✅ Correct Answer: 2

First of all microscope discovered by

1. Needham
2. Spallanzani
3. Leeuwenhoeck
4. Koch

✅ Correct Answer: 3

First plant parasitic bacteria was reported by

1. T.J. Burrill
2. Needham
3. Louis Pasteur
4. Leeuwenhoek

✅ Correct Answer: 1

First plant parasitic nematode discovered was

1. Meloidogyne
2. Heterodera
3. Anguina
4. Globodera

✅ Correct Answer: 3

First plant parasitic nematode was reported by

1. Needham
2. Spallanzani
3. Cobb
4. Mayer

✅ Correct Answer: 1

Flag smut of sweat could be controlled by

1. Seed treatment with vitavax
2. Spraying with vitavax
3. Soil application with vitavax
4. More than one option is correct

✅ Correct Answer: 1

Flag smut of wheat is caused by

1. Ustilago tritici
2. Urceystis trlttct
3. Ustilago hordet
4. Taphrina deformans

✅ Correct Answer: 2

Foot rot of papaya is caused by

1. Phytophthora palmivora
2. Pythium aphanidermatum
3. Peronospora parasitica
4. Albugo candida

✅ Correct Answer: 2

Fungi which can grow on living host plant are called

1. Obligate saprophyte
2. Obligate parasite
3. Facultative parasite
4. Saprophytes

✅ Correct Answer: 2

Fungi which can grow only on living host plant are called

1. Obligate saprophytes
2. Obligate parasites
3. Facultative parasites
4. Saprophytes

✅ Correct Answer: 2

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Botany MCQS[NEET-2021 to 2022]-Plant Pathology - I