Sapromyophily in Rafflesia: The giant parasitic flower Rafflesia arnoldii mimics decaying animal flesh through its reddish-brown mottled petals and fetid putrid carrion odor (dimethyl oligosulfides).
Specific Pollinator: Exclusively attracts and is pollinated by carrion flies (blowflies, family Calliphoridae). (Correct answer: Option 2)
Explanation not matching this question?क्या व्याख्या इस प्रश्न से मेल नहीं खा रही?Report
12
ICAR JRF Plant Genetic Resources 29 Jun 2024Shift 1
Induction of Staminate Flowers in Gynoecious Lines: Gynoecious cucumber lines (Cucumis sativus) produce only pistillate (female) flowers, preventing natural selfing.
Maintenance: Foliar application of Silver Nitrate ($AgNO_3$) or Silver Thiosulfate (STS) acts as a potent inhibitor of ethylene action, inducing transient male (staminate) flowers that produce viable pollen for self-pollination. (Correct answer: Option 1)
Explanation not matching this question?क्या व्याख्या इस प्रश्न से मेल नहीं खा रही?Report
13
ICAR JRF Plant Genetic Resources 29 Jun 2024Shift 1
MCQ (Single Correct)+4−1
Which among the following is not an ROS scavenging enzyme
Enzymatic Scavengers: Superoxide Dismutase (SOD, converts $O_2^{\bullet-}$ to $H_2O_2$), Catalase (CAT, decomposes $H_2O_2$ to $H_2O$), and Peroxidase (POX).
Non-Enzymatic Antioxidant: Glutathione (GSH) is a non-enzymatic tripeptide thiol antioxidant that acts as a substrate in the ascorbate-glutathione cycle, not an enzyme. (Correct answer: Option 2)
Explanation not matching this question?क्या व्याख्या इस प्रश्न से मेल नहीं खा रही?Report
14
ICAR JRF Plant Genetic Resources 29 Jun 2024Shift 1
Alternaria porri: The causal fungal agent of purple blotch disease of onion and garlic.
Primary Inoculum & Habitat: Carried primarily as viable seed-borne mycelium and conidia on onion seeds, as well as surviving on infected allium crop residues. (Correct answer: Option 4)
Explanation not matching this question?क्या व्याख्या इस प्रश्न से मेल नहीं खा रही?Report
15
ICAR JRF Plant Genetic Resources 29 Jun 2024Shift 1
MCQ (Single Correct)+4−1
The concept of Pureline was proposed by. in the year........ on the basis of his studies with beans (Phaseolus
vulgaris) variety called
Formulated by Danish botanist and geneticist Wilhelm Johannsen in 1903.
Conducted selection experiments on seed weight in the self-pollinated common bean (Phaseolus vulgaris) cultivar 'Princess'.
Demonstrated that a pure line is the progeny of a single self-fertilized homozygous individual, within which variation is entirely environmental and selection is ineffective. (Correct answer: Option 3)
Explanation not matching this question?क्या व्याख्या इस प्रश्न से मेल नहीं खा रही?Report
Report Issue / Suggest Correctionत्रुटि रिपोर्ट / संशोधन सुझाव
No official replies published yet for this questionइस प्रश्न पर अभी कोई आधिकारिक समाधान प्रकाशित नहीं है
Have an objection, typo, or doubt? Submit a report in Tab 1. Our subject experts will audit the question and publish the official resolution here.यदि आपको इस प्रश्न या उत्तर कुंजी में कोई आपत्ति है, तो 'त्रुटि रिपोर्ट' टैब से विवरण भेजें। हमारी विषय विशेषज्ञ टीम समीक्षा कर आधिकारिक समाधान प्रकाशित करेगी।