laser-based biophysical analytical technology that measures the optical fluorescence emitted by fluorochrome-stained nuclei (e.g., using propidium iodide or DAPI) as cells flow in a single-file stream through a light beam.
Primary Application in Plant Breeding: Rapid, high-throughput estimation of absolute nuclear DNA content (2C value) and determination of ploidy levels (diploid, triploid, tetraploid, aneuploid), screening of polyploid and interspecific breeding populations.
Correct Option: Option 3 (Ploidy level).
Explanation not matching this question?क्या व्याख्या इस प्रश्न से मेल नहीं खा रही?Report
7
ICAR JRF Floriculture And Landscaping 29 Jun 2024Shift 1
MCQ (Single Correct)+4−1
Bud sport ‘Pusa Akansha’ is obtained in which of the following ornamental crop?
Developed at the Division of Floriculture and Landscaping, ICAR-IARI, New Delhi.
distinguished spontaneous bud sport (somatic mutation) isolated in Bougainvillea, celebrated for its attractive bicolored/variegated floral bracts and heavy flowering clusters.
Bougainvillea Sports: Bougainvilleas have high natural somatic mutation rates, and leading Indian cultivars ('Mary Palmer', 'Thimma', 'Dr. B.P. Pal') were discovered as bud sports.
Correct Option: Option 2 (Bougainvillea).
Explanation not matching this question?क्या व्याख्या इस प्रश्न से मेल नहीं खा रही?Report
8
ICAR JRF Floriculture And Landscaping 29 Jun 2024Shift 1
MCQ (Single Correct)+4−1
Which of the following is not a gamma ray induced mutant of chrysanthemum cv. Thai Chen Queen?
Mutants Derived from Chrysanthemum cv. 'Thai Chen Queen':
'Thai Chen Queen' (a purple-flowered spider/reflexed type) was irradiated with gamma rays ($1.5 - 2.5\text{ krad}$) at ICAR-IARI, New Delhi, releasing:
Report Issue / Suggest Correctionत्रुटि रिपोर्ट / संशोधन सुझाव
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