कृषि, पशु र वन विज्ञान प्रवेश
कृषि, पशु र वन विज्ञान प्रवेश
Agriculture, Veterinary & Forestry Entrance · २,४९३ प्रश्न
२,४९३ प्रश्न उपलब्ध। मोड छान्नुहोस्:
कृषि/वन 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 theory that life on earth came from spores or germs from outer space is called:
सही उत्तर: ग) Panspermia
Panspermia proposes that the units of life (spores) were transferred to earth from other planets.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The age of fossils of organic origin up to about 50,000 years is commonly determined by:
सही उत्तर: क) Radiocarbon (carbon-14) dating
Carbon-14, with a half-life of about 5,730 years, is used to date organic remains up to about 50,000 years.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Balanoglossus is regarded as a connecting link between:
सही उत्तर: क) Non-chordates and chordates
Balanoglossus (a hemichordate) shows a stomochord and gill slits, linking invertebrates with chordates.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Peripatus is considered a connecting link between:
सही उत्तर: ख) Annelida and Arthropoda
Peripatus has annelid features (segmental nephridia, soft body) and arthropod features (tracheae, claws).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Along with Charles Darwin, the theory of evolution by natural selection was independently formulated by:
सही उत्तर: क) Alfred Russel Wallace
Wallace arrived at the same idea independently, and their joint paper was presented in 1858.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The phrase 'survival of the fittest' was coined by:
सही उत्तर: घ) Herbert Spencer
Herbert Spencer coined the phrase; Darwin later used it in later editions of 'On the Origin of Species'.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Thalassaemia differs from sickle cell anaemia in that it is:
सही उत्तर: ग) A quantitative defect caused by reduced synthesis of globin chains
Thalassaemia is a quantitative problem (too few globin chains made), while sickle cell anaemia is a qualitative problem (abnormal globin).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Cri-du-chat syndrome results from a deletion in the short arm of chromosome:
सही उत्तर: ख) 5
Partial deletion of the short arm (5p) of chromosome 5 causes cri-du-chat ('cry of the cat') syndrome.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Edwards' syndrome is caused by trisomy of chromosome number:
सही उत्तर: ख) 18
Edwards' syndrome is trisomy 18; Down's is trisomy 21 and Patau's is trisomy 13.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In honeybees, male drones develop from unfertilised eggs. This method of sex determination is called:
सही उत्तर: ख) Haplodiploidy
In haplodiploid insects, fertilised (diploid) eggs become females and unfertilised (haploid) eggs become males.
💬 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।
नमस्ते! पाठ्यक्रम, सामान्य ज्ञान, भाषा परीक्षा वा कुनै प्रश्नको उत्तर बुझ्न सोध्नुहोस्।
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