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Today’s Solved Botany Subject Specialist Paper Feb 14 2025 SPSC

Posted on: March 14, 2025 | Author: Studyprop
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Today’s Botany Subject Specialist Paper Feb 14, 2025 Conducted by Sindh Public Service Commission SPSC

 

# Question A B C D Answer
1 Photosystem I is located predominantly in the: Stacked regions of thylakoid membrane Unstacked regions of thylakoid membrane Lumen of the thylakoid membrane Stroma of the chloroplast B
2 What does ORNAGOGENESIS mean? Formation of callus culture Root formation and shoot from callus culture Genesis of plants None of the above B
3 Synonym of “QUANDARY”? Quarter Riddle Compromise Vanquished B
4 Title given to Hazrat Usman (R.A)? Zul noor Zul Noorain Saifullah Khalilullah B
5 Ion carriers are located in: Cell wall Intercellular spaces Cell membrane Nucleus C
6 Correct spelling? Accommodate Accommodete Acomadate Acomdate A
7 Bacterium involved in denitrification? Azotobacter Nitrosomonas Pseudomonas Nitrobacter C
8 Biological clock system for flowering? Auxin Phytochromes Chlorophyll Photoperiodism D
9 Year Columbus discovered America? 1490 1491 1492 1494 C
10 A gene is: A gene variant at a specific locus A type of chromosome A trait that is expressed A mutation in DNA A
11 Gene editing technique in plants? Somatic hybridization CRISPR-Cas9 Micropropagation Electroporation B
12 Best method for virus-free plant production? Embryo culture Meristem culture Ovule culture Anther culture B
13 Synonym of “Intransigent”? Unyielding Agreeable Complaint Flexible A
14 pH value of human blood? 7.35 to 7.45 3.220 to 3.52 4.12 to 4.24 None of the above A
15 Element necessary for biological nitrogen fixation? Zinc Potassium Calcium Molybdenum D
16 Fill in the blank: “He has been working here __ 2015.” For Since At JOD B
17 First plant response against stress? Stomatal closure Chlorosis Necrosis Wilting A
18 Modification of reproductive behavior of plants? Photoperiodism & Vernalization Respiration & Vernalization Transpiration & Photoperiodism Respiration & Transpiration A
19 Least valued currency in the world? PKR IRR AFN JOD B
20 Homozygous genotype? AaBb AA Aa AaBb B
21 Molecules produced from a hexose sugar? 15 08 10 36 C
22 Nitrogen-fixing enzyme? Urease Arginase Deoxyribonuclease All of the above D
23 Author of “Symphony”? Composer Conductor Musician Singer A
24 Unit to measure noise pollution? Hertz Decibel Decimal None B
25 Respiration occurs in which cycle? Pyruvate Glycolate Hill Krebs D
26 Sentence correction: “Robin rolled the marble through a small plastic pipe.” The marble was rolled by Robin A small plastic pipe was rolled through a marble The marble through a small plastic pipe was rolled by Robin None of the above A
27 Plant uses which substances as cheap osmoticum? Proline Betain Minerals Ascorbic acid A
28 Which causes RAB-cell wall elongation? Abscisic acid Stomatal closure Gibberellic acid Cytokinin-cell division C
29 What is the old name of PIA? Pakistan Airways Kalloch Air Ways Orient Air Ways Intendon Air Ways C
30 Method not commonly used for genetic transformation? Microinjection-mediated transformation Gene gun method Agrobacterium-mediated transformation Natural selection D
31 Cloning technique in plants? Tissue culture Hybridization Gene sequencing Mutation A
32 Function of leghemoglobin in root nodules? Protects oxygen in root nodule Acts as an oxygen sensor Binds to nitrogen-fixing bacterium Acts as a catalyst for respiration A
33 Sentence completion: “The movie was so boring that I walked __ before it ended.” Out Away Down Out A
34 Who coined the term “Black hole” in 1967? John Wheeler Albert Einstein None of these – A
35 Protein responsible for absorption of light? Chromophore Apoprotein Proprotein – A
36 Salinity causes plants to face: Oxidative stress Ion toxicity Osmotic stress Nutrient imbalances C
37 Phototropic curvature results from uneven distribution of: Gibberellin Phytochrome Cytokinins – C
38 District “Swat” belongs to? Bannu Malakand Kohat Mardan B
39 Mass of loosely arranged parenchyma cells from explants is called: Thallus Callus Callose Embryoids B
40 Messenger from the embryo that stimulates seed digestion? Cytokinin Gibberellin – – B
41 Which element is NOT remobilized in plants? Phosphorus Magnesium Potassium – B
42 Meaning of “Burning the midnight oil”? Studying/work late Wasting time Sleeping early Spending money carelessly A
43 Which word is spelled correctly? – – – – C
44 Which intermediate of the C4 cycle accumulates? Pyruvate Only Malate Malate & Aspartate None of these C
45 Soil becomes less fertile in: Acidic soil Neutral soil Alkaline soil None A
46 Plant hormone delaying fruit ripening? Gibberellin IAA Ethylene Abscisic acid D
47 Current Governor of Balochistan? Jaffar Khan Mandokhel Faisal Kareem Kundi None of the above – C
48 Genetically similar organisms by asexual reproduction? Clone Population Assembly None A

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