Botany/Plant Pathology - I Sample Test,Sample questions

Question: A bacterium is devoid of

1.Chlorophyll

2.Well defined nucleus

3.Cell Wall

4.None


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

1.Virion

2.Viriod

3.Capsid

4.All above


Question: Agallol is used for

1.Seed treatment

2.Soil treatment

3.Crop spray

4.Aerial spray


Question: Agar-agar is produced from which of the following ?

1.Nostoc

2.Macrocrocystis

3.Gelidium

4.Oscillatortia


Question: Alternate host of black stem rust of wheat

1.Mohania

2.Thalictrum

3.Barberry

4.All above


Question: Anterior tinsel flagellum is characteristics of

1.Chytridiomycetes

2.Hypochytridiomycetes

3.None of these

4.A and B


Question: Association of fungi with roots of higher plants is known as

1.Lichen

2.Mycorrhiza

3.Ascolichen

4.Basidiolichen


Question: Bacterial cell surrounded by which of the following flagella?

1.Monotrichous

2.Lophotrichous

3.Amphitrichous

4.Peritrichous


Question: 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


Question: Bengal famine was caused due to which of the following?

1.Phytophthora infestans

2.Drechslera oryzae

3.Puccinia graminis tritici

4.Heterodera avenage


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

1.Puccinia graminis tritici

2.Puccinia recondita

3.Puccinia striformis

4.Ustilagotritici


Question: 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


Question: Botulism is caused by which species

1.Bacillus

2.Pseudomonas

3.Agrobacterium

4.Clostridium


Question: Brassicol is fungicide

1.Murcurious

2.Sulphur

3.Cu

4.Miscellaneous


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

1.Sclerospora sorghi

2.Physoderus zeamaydis

3.Alternaria solani

4.Cercospora perfonats


Question: 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


Question: Carborundum powder is

1.Silicon carbide

2.Aluminium oxide

3.Diatomaceous earth

4.Calcium carbonate


Question: Coffee rust is caused by

1.Uromyces hobsoni

2.Hemileia vastatrix

3.Cronartium ribicola

4.Ravenelia-emblicae


Question: Conidia and sporangia are the spores produced by

1.Bacteria

2.Viruses

3.Fungi

4.Phanerogams


Question: Crystalization of viruses has done by

1.Mayer

2.Stanley

3.Iwanowski

4.Bejerinck


Question: Cysts are formed by

1.Meloidogyne

2.Aphelenchoides

3.Heterodera

4.None of the above


Question: Death of tissue in virus infected plant described as

1.Mottling

2.Mosaic

3.Necrosis

4.Curling


Question: Didelphic means nematodes with which of the following ?

1.One ovary

2.Two ovaries

3.Three ovaries

4.None


Question: Disease symptoms known as phyllidy in sesamum are caused by

1.Bacterium

2.Fungus

3.MLO

4.Virus


Question: Dithane M-45 is a

1.Bactericide

2.Insecticide

3.Fungicide

4.Nematicide


Question: Domestic quarantine exists on

1.Rice blast

2.Red rot of sugarcano

3.Wart of potato

4.Run of wheat


Question: Downy mildew of maize is caused by

1.Peronosclerspora sacchari

2.Peronospora triognella

3.Sclerospora graminicola

4.Sclerospora sacchari


Question: Exclusion of plant disease by legislation is known as

1.Disease resistance

2.Plant quarantine

3.Biological control of plant

4.Cultural control


Question: First of all microscope discovered by

1.Needham

2.Spallanzani

3.Leeuwenhoeck

4.Koch


Question: First plant parasitic bacteria was reported by

1.T.J. Burrill

2.Needham

3.Louis Pasteur

4.Leeuwenhoek


Question: First plant parasitic nematode discovered was

1.Meloidogyne

2.Heterodera

3.Anguina

4.Globodera


Question: First plant parasitic nematode was reported by

1.Needham

2.Spallanzani

3.Cobb

4.Mayer


Question: 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


Question: Flag smut of wheat is caused by

1.Ustilago tritici

2.Urceystis trlttct

3.Ustilago hordet

4.Taphrina deformans


Question: Foot rot of papaya is caused by

1.Phytophthora palmivora

2.Pythium aphanidermatum

3.Peronospora parasitica

4.Albugo candida


Question: Fungi which can grow on living host plant are called

1.Obligate saprophyte

2.Obligate parasite

3.Facultative parasite

4.Saprophytes


Question: Fungi which can grow only on living host plant are called

1.Obligate saprophytes

2.Obligate parasites

3.Facultative parasites

4.Saprophytes


Question: Plant Pathology is word

1.English

2.Latin

3.Greek

4.Mandarin


Question: proposed a classification of fungi which is now widely accepted

1.Walker (1957)

2.Stakman & Harrar (1957)

3.Whittaker (1969)

4.Ainsworth (1973)


Question: Ryat is a which type of Parasite?

1.Obligate

2.Saprophyte

3.Facultative

4.Predator


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

1.Boron

2.Zinc

3.Iron

4.Oxygen


Question: The shaped of Cocci are

1.Spiral shaped

2.Spherical shaped

3.Rod shaped

4.None of the above


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

1.Male

2.Female

3.A and B

4.None of these


Question: Which of the following caused Black tip of mango ?

1.Phythium

2.Phytosynthetas

3.Boron deficiency

4.Zinc deficiency


Question: Which of the following is a Albugo?

1.Obligate parasite

2.Facultative parasite

3.Saprophyte

4.Predator


Question: Which of the following is odd one

1.Lance nematode = Pratylenchulus

2.Lesion nematode = Pratylenchulus

3.Sting nematode = Belonolaimus

4.Awl nematode = Dolichodorous


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

1.Xanthomonas

2.Drechslera oryzae

3.Pyricularia

4.Cercospora


Question: Which of the following is the shape of Bacilli

1.Spiral shaped

2.Spherical shaped

3.Rod shaped

4.None of the above


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

1.Tyrocidine

2.Streptomycetease

3.Penicillin

4.Giseofulvin


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

1.4

2.5

3.6

4.8


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