कृषि, पशु र वन विज्ञान B.Sc. Forestry प्रवेश तयारी
कृषि, पशु र वन विज्ञान – B.Sc. Forestry प्रवेश
B.Sc. Forestry Entrance · Agriculture, Veterinary & Forestry Entrance
२,४९३ प्रश्न उपलब्ध। मोड छान्नुहोस्:
कृषि, पशु र वन विज्ञान प्रवेश: प्रश्न र उत्तर
सही लागेको विकल्पमा थिच्नुहोस्। सही भए हरियो, गलत भए रातो देखिन्छ; ३ सेकेन्डपछि सही उत्तर र व्याख्या देखिन्छ।
सही: ० / ०
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The genetic material of tobacco mosaic virus (TMV) is:
सही उत्तर: ग) Single-stranded RNA
TMV is a rod-shaped plant virus with a single-stranded RNA genome surrounded by a protein coat.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Deuteromycetes are called 'fungi imperfecti' because:
सही उत्तर: ग) Their sexual stage is not known
Only the asexual (imperfect) stages of these fungi are known; when a sexual stage is found they are moved to another class.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Mushrooms (Agaricus), rusts (Puccinia) and smuts (Ustilago) belong to the class:
सही उत्तर: घ) Basidiomycetes
These fungi produce sexual spores (basidiospores) on club-shaped basidia, the defining feature of Basidiomycetes.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The common bread mould Rhizopus belongs to the fungal class:
सही उत्तर: ग) Phycomycetes
Rhizopus and Mucor are phycomycetes (zygomycetes) with aseptate, coenocytic hyphae and zygospores.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Euglena is called mixotrophic because it:
सही उत्तर: ग) Photosynthesises in light but feeds heterotrophically in darkness
Euglena has chloroplasts and makes food in sunlight, but in the absence of light it absorbs organic food like a heterotroph.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The 'red tide' that discolours sea water and can kill fish is caused by the rapid multiplication of:
सही उत्तर: ग) Dinoflagellates such as Gonyaulax
Blooms of red dinoflagellates like Gonyaulax colour the sea red and release toxins harmful to marine animals.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The first approved clinical gene therapy, in 1990, was given to a child suffering from deficiency of the enzyme:
सही उत्तर: क) Adenosine deaminase (ADA)
In 1990 a four-year-old girl with ADA deficiency (a form of severe combined immunodeficiency) received her own lymphocytes carrying a functional ADA gene.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Charles Darwin made his famous five-year voyage of observation around the world aboard the ship:
सही उत्तर: ग) HMS Beagle
Darwin sailed on HMS Beagle (1831-1836), visiting places such as the Galapagos Islands, which shaped his theory.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Speciation that occurs when populations are separated by a geographical barrier such as a mountain or sea is called:
सही उत्तर: घ) Allopatric speciation
In allopatric speciation, geographic isolation stops gene flow, and the separated populations diverge into new species.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In a population in Hardy-Weinberg equilibrium, 16% of the individuals show a recessive phenotype. What is the frequency of the dominant allele?
सही उत्तर: क) 0.6
q² = 0.16, so q = 0.4 and p = 1 − 0.4 = 0.6.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
यी अभ्यास प्रश्न हुन्, आधिकारिक प्रश्न होइनन्। पाठ्यक्रम, विज्ञापन र नतिजाका लागि सम्बन्धित निकायको आधिकारिक वेबसाइट हेर्नुहोस्। उत्तरमा गल्ती भेटे प्रश्नमुनिको "टिप्पणी / गल्ती रिपोर्ट" मा लेख्नुहोस्।
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