Who gave the ‘Binomial System of Nomenclature’? | Agrigyan

All Subjects History, Culture & Heritage of Rajasthan Geography, Natural Resources & Socio-Economic Development of Rajasthan Mycology Plant Bacteriology Plant Virology Plant Disease Management Diseases of Crop Plants Principles of Plant Pathology Laboratory and Analytical Techniques Epidemiology and Forecasting of Plant Disease Mushroom Production Technology

Q.106

RPSC Agriculture Research Officer (Plant Pathology) - 2022

MCQ (Single Correct) +1 −0.33

Who gave the ‘Binomial System of Nomenclature’?

'द्विनाम पद्धति' को देने वाले वैज्ञानिक थे -

Persoon and Fries परसून एवं फ्राइज P. A. Micheli पी. ए. मिचेली Anton Von Leeuwenhoek एंटोन वॉन ल्यूवेनहॉक Carl Linnaeus कार्ल लिनिअस

Q.107

RPSC Agriculture Research Officer (Plant Pathology) - 2022

MCQ (Single Correct) +1 −0.33

Movement of potato tubers from Darjeeling to other states is restricted to prevent which disease?

आलू के कंद दार्जिलिंग से दूसरे राज्यों में प्रवेश पर रोक किस रोग के रोकथाम के लिए है?

Late blight पिछेती झुलसा Wart disease वॉर्ट रोग Early blight अगेती झुलसा Black scurf ब्लैक स्कर्फ

Q.108

RPSC Agriculture Research Officer (Plant Pathology) - 2022

MCQ (Single Correct) +1 −0.33

Bacterial wilt of tomato can be minimized by dipping the seedlings before planting in -

टमाटर के जीवाणु झुलसा रोग को बुवाई से पूर्व पौध को किस रसायन से उपचारित करके नियंत्रित किया जा सकता है?

Mancozeb मेन्कोज़ेब Karathane केराथेन Streptocycline स्ट्रेप्टोसाइक्लिन Sulphur सल्फर

Q.109

RPSC Agriculture Research Officer (Plant Pathology) - 2022

MCQ (Single Correct) +1 −0.33

Which is not plant pathogenic phyla among following?

निम्नांकित में से कौनसा पादप रोगजनक संघ नहीं है?

Proteobacteria प्रोटोबेक्टिरिया Chlamydiae क्लेमाइडी Firmicutes फर्मिक्यूट्स Actinobacteria एक्टिनोबेक्टिरिया

Proteobacteria contains the vast majority of Gram-negative plant pathogenic bacteria (Pseudomonas, Xanthomonas, Ralstonia, Agrobacterium, Erwinia).
Chlamydiae is a bacterial phylum consisting strictly of obligate intracellular pathogens of humans, animals, and birds (causing trachoma, psittacosis); it contains zero plant pathogenic species.
Firmicutes contains plant pathogenic walled Gram-positive bacteria (Clavibacter) and wall-less mollicutes (Phytoplasmas and Spiroplasmas).
Actinobacteria includes plant pathogenic Streptomyces (potato scab).

Hence, the correct option is (B).

प्रोटियोबैक्टीरिया में पादप रोगजनक अधिकांश ग्राम-ऋणात्मक जीवाणु (स्यूडोमोनास, जैन्थोमोनास आदि) आते हैं।
संघ 'क्लेमाइडी' (Chlamydiae) केवल मनुष्यों व पशु-पक्षियों के अविकल्पी अंतःकोशिकीय रोगजनक जीवाणुओं का समूह है, इसमें कोई भी पादप रोगजनक जीवाणु शामिल नहीं है।
फर्मिक्यूट्स में पादप रोगजनक क्लैविबैक्टर तथा फाइटोप्लाज्मा आते हैं।
एक्टिनोबैक्टीरिया में स्ट्रेप्टोमाइसिज (आलू का स्केब) आते हैं।

अतः सही विकल्प (B) है।

Explanation not matching this question? क्या व्याख्या इस प्रश्न से मेल नहीं खा रही? Report

Q.110

RPSC Agriculture Research Officer (Plant Pathology) - 2022

MCQ (Single Correct) +1 −0.33

Which filter is not used for sterilization technique?

निम्नलिखित में से कौनसा निस्पंदक निर्जर्मीकरण तकनीक में प्रयोग नहीं होता?

Bacterial filter जीवाणु निस्पंदक Chamberland filter चेम्बरलैण्ड निस्पंदक Seitz filter सीत्ज निस्पंदक Whatman filter paper no. 1 वॉटमेन निस्पंदक पत्र नं. 1

Bacterial filters (membrane filters with 0.22 micron pores) are standard for sterilizing solutions.
Chamberland-Pasteur filter is an unglazed porcelain candle filter used for bacteriological sterilization.
Seitz filter is an asbestos-cellulose pad filter designed specifically for bacterial sterilization of heat-labile sera and toxin media.
Whatman filter paper No. 1 is a standard analytical qualitative filter paper with a coarse nominal pore size of ~11 microns; bacteria (typically 0.5-2 microns) pass freely through it, making it completely ineffective for sterilization.

Hence, the correct option is (D).

जीवाणु फिल्टर (0.22 माइक्रोन) का उपयोग तरल पदार्थों को जीवाणुरहित करने में होता है।
चेम्बरलैंड फिल्टर अनग्लेज्ड पोर्सिलेन का जीवाणु अवरोधक फिल्टर है।
सीत्ज फिल्टर एस्बेस्टस पैड युक्त मानक निर्जर्मीकरण फिल्टर है।
वॉटमेन फिल्टर पेपर नं. 1 (Whatman filter paper No. 1) साधारण रासायनिक प्रयोगशाला में छानने के काम आता है जिसके छिद्र लगभग 11 माइक्रोन बड़े होते हैं, जिससे जीवाणु आसानी से पार निकल जाते हैं; अतः इसका उपयोग विसंक्रमण में नहीं किया जा सकता।

अतः सही विकल्प (D) है।

Explanation not matching this question? क्या व्याख्या इस प्रश्न से मेल नहीं खा रही? Report

History, Culture & Heritage of Rajasthan 15
Geography, Natural Resources & Socio-Economic Development of Rajasthan 15
Mycology 2
Plant Bacteriology 8
Plant Virology 16
Plant Disease Management 3
Diseases of Crop Plants 51
Principles of Plant Pathology 11
Laboratory and Analytical Techniques 12
Epidemiology and Forecasting of Plant Disease 5
Mushroom Production Technology 12

History, Culture & Heritage of Rajasthan

8 Topics

Age of Rajputs Performing Arts: Music, Dance & Drama Language, Dialects & Literature of Rajasthan Pre & Early History of Rajasthan Visual Art: Architecture, Sculpture & Paintings Integration of Rajasthan Religious Cults, Saints & Folk Deities Social Life: Fairs, Festivals, Customs, Attire & Ornaments

Geography, Natural Resources & Socio-Economic Development of Rajasthan

5 Topics

Physiographic Divisions & Relief Features Drainage System & Irrigation Projects Soils, Forests & Wildlife Conservation Demographics, Castes & Tribes Environmental & Ecological Concerns

History and Scope of Plant Pathology

2 Topics

History of Plant Pathology & Major Epidemics Classification of Plant Diseases & Protection History

Mycology

2 Topics

General Characters, Morphology & Reproduction of Fungi Classification, Importance & Genetics of Fungi

Plant Bacteriology

2 Topics

Phytopathogenic Bacteria & Fastidious Prokaryotes Active Bacterial Nutrition, Reproduction, Phages & Inhibitors

Plant Virology

2 Topics

History, Structure, Transmission & Replication of Plant Viruses Viral Diagnostics, Sub-Viral Agents & Management

Plant Disease Management

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Principles of Disease Control, IDM & Quarantine Host Resistance, Fungicides, Appliances & PGPR

Diseases of Crop Plants

2 Topics

Diseases of Field, Horticultural, Plantation & Spice Crops Post-Harvest Diseases, Phanerogamic Parasites & Non-Parasitic Diseases

Principles of Plant Pathology

2 Topics

Disease Concepts, Survival, Dispersal & Pathogenesis Defense Mechanisms, Altered Metabolism & Genetics of Resistance

Laboratory and Analytical Techniques

2 Topics

Culture Media, Isolation, Inoculation & Disease Measurement Molecular Diagnostics & Laboratory Equipment

Epidemiology and Forecasting of Plant Disease

1 Topic

Epidemiology, Disease Forecasting & Crop Loss Assessment

Mushroom Production Technology

1 Topic

Mushroom Cultivation, Spawn Production & Pest-Disease Management

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