कृषि, पशु र वन विज्ञान B.Sc. Ag र B.V.Sc. & A.H. प्रवेश तयारी
कृषि, पशु र वन विज्ञान – B.Sc. Ag र B.V.Sc. & A.H. प्रवेश
B.Sc. Ag & B.V.Sc. 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
-
Restriction endonucleases used in recombinant DNA technology are called 'molecular scissors' because they:
सही उत्तर: ग) Cut DNA at specific recognition sequences
Restriction enzymes such as EcoRI recognise specific palindromic sequences and cut DNA there; DNA ligase joins fragments.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
A centromere located at the very end of a chromosome makes it:
सही उत्तर: घ) Telocentric
Telocentric chromosomes have a terminal centromere; acrocentric ones have it very near (but not at) one end.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
Which structure is the site of ribosomal RNA (rRNA) synthesis?
सही उत्तर: घ) Nucleolus
The nucleolus synthesizes rRNA and assembles ribosomal subunits.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
The cristae are infoldings of the:
सही उत्तर: ख) Inner mitochondrial membrane
Cristae are folds of the inner mitochondrial membrane that increase surface area for the electron transport chain.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
Which of the following organelles contains its own DNA?
सही उत्तर: ग) Chloroplast
Chloroplasts and mitochondria are semi-autonomous organelles with their own circular DNA and 70S ribosomes.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
Which organelle modifies, sorts and packages proteins for secretion?
सही उत्तर: घ) Golgi apparatus
The Golgi apparatus processes proteins received from the rough ER and packages them into vesicles.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
Which organelle is called the 'suicide bag' of the cell?
सही उत्तर: घ) Lysosome
Lysosomes contain hydrolytic enzymes; if they rupture they can digest the cell itself (autolysis).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
Ribosomes of prokaryotic cells are of which type?
सही उत्तर: क) 70S
Prokaryotic ribosomes are 70S (50S + 30S subunits), while eukaryotic cytoplasmic ribosomes are 80S.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
Which cell organelle is the site of protein synthesis?
सही उत्तर: ग) Ribosome
Ribosomes translate mRNA into polypeptide chains, so they are the site of protein synthesis.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
In strongly acidic soils, phosphorus availability falls mainly because phosphate is fixed by:
सही उत्तर: ख) iron and aluminium
At low pH, phosphate reacts with soluble iron and aluminium to form insoluble compounds. In alkaline soils it is fixed mainly by calcium instead.
💬 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।
AI ले गल्ती गर्न सक्छ। महत्वपूर्ण कुरा आधिकारिक स्रोतमा जाँच्नुहोस्।