वनस्पति विज्ञान – Botany – Botany MCQ
वनस्पति विज्ञान – Botany – CEE प्रवेश
Botany · Medical Entrance (CEE) – Physics, Chemistry, Biology & MAT · ४०७ प्रश्न
४०७ प्रश्न उपलब्ध। मोड छान्नुहोस्:
वनस्पति विज्ञान – Botany: 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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Cyathium inflorescence is characteristic of:
सही उत्तर: घ) Euphorbia
Euphorbia has a cup-shaped involucre with one central female flower and many male flowers, called a cyathium. Ficus has a hypanthodium.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The inflorescence of sunflower is a:
सही उत्तर: ख) Capitulum (head)
Sunflower has a capitulum with ray and disc florets on a flattened receptacle. Cyathium is found in Euphorbia and hypanthodium in Ficus.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A flower in which the ovary is superior and other floral parts arise below it is:
सही उत्तर: क) Hypogynous
In hypogynous flowers (mustard, brinjal, China rose) the ovary is superior. In epigynous flowers like guava, the ovary is inferior.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Whorled phyllotaxy (more than two leaves at a node) is seen in:
सही उत्तर: ग) Alstonia
Alstonia has more than two leaves at each node, arranged in a whorl. Calotropis shows opposite phyllotaxy.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Parallel venation is generally characteristic of:
सही उत्तर: ख) Monocotyledons
Most monocot leaves have parallel venation. Dicots typically show reticulate venation.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Ginger is an underground stem of the type:
सही उत्तर: ग) Rhizome
Ginger is a rhizome, a horizontally growing underground stem with nodes and internodes. Onion is a bulb and Colocasia is a corm.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Sweet potato is a modified:
सही उत्तर: घ) Root
Sweet potato is a tuberous adventitious root storing food. Unlike potato, it has no nodes or buds on its surface.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The potato tuber is a modified:
सही उत्तर: घ) Stem
Potato is an underground stem tuber; its 'eyes' are nodes bearing buds. Sweet potato is a modified root.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Opuntia has a flattened green stem that performs photosynthesis. This is called a:
सही उत्तर: ख) Phylloclade
A phylloclade is a flattened, green, photosynthetic stem, as in Opuntia and Euphorbia. A phyllode is a flattened petiole, as in Australian Acacia.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Thorns of Bougainvillea are modified:
सही उत्तर: ख) Axillary buds (stem)
Bougainvillea thorns arise from axillary buds and are stem modifications. Cactus spines, by contrast, are modified leaves.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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