SENIOR AGRICULTURE OFFICER 5 YEARS PAST PAPERS
5 Years Past Papers
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چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
قدرت میں سب سے زیادہ پایا جانے والا مرکب کون سا ہے؟
- Cellulose
- Starch
- Protein
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Cellulose is the most abundant organic compound in nature.
- It is the main component of plant cell walls.
- Found in wood, cotton, and plant fibers.
Last verified on 11-02-2026
اوسموسس کے ذریعے خلیے سے پانی نکلنے پر پروٹوپلازم کے سکڑنے کو کیا کہتے ہیں؟
- Hydrolysis
- Dehydration
- Plasmolysis
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Plasmolysis is the shrinkage of the protoplasm when water leaves the cell by osmosis.
- It occurs when a plant cell is placed in a hypertonic solution.
- The cell membrane pulls away from the cell wall due to water loss.
Last verified on 11-02-2026
پودے کے کس حصے میں میوسس کا مطالعہ سب سے بہتر کیا جا سکتا ہے؟
- Young bud
- Anther
- Root tip
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Meiosis occurs in the reproductive parts of plants.
- The anther contains pollen mother cells where meiosis takes place to form pollen grains.
- Therefore, anther is the most suitable part to study meiosis.
Last verified on 11-02-2026
وہ طریقہ جس میں میٹابولک راستے کا آخری پیدا ہونے والا مادہ ابتدائی انزائم کو روک دیتا ہے کیا کہلاتا ہے؟
- Feed back inhibition
- Early inhibition
- Metabolic inhibition
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Feedback inhibition is a control mechanism in metabolism.
- Also called end-product inhibition.
- The final product of a metabolic pathway inhibits an enzyme acting at an early step.
- This prevents overproduction and saves energy/resources in the cell.
Last verified on 11-02-2026
کروموسومز کی سیناپسس کس کے درمیان ہوتی ہے؟
- Sister chromatids
- Homologous chromosomes
- Non homologous
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Synapsis is the pairing of homologous chromosomes during prophase I of meiosis.
- Allows crossing over and exchange of genetic material.
- Sister chromatids are identical copies; synapsis involves matching chromosomes from each parent.
- Essential for genetic variation in gametes.
- Occurs only in sexually reproducing organisms.
Last verified on 07-02-2026
مٹی کی ساخت کو بہتر بنانے کے لیے کس چیز کا اضافہ کیا جا سکتا ہے؟
- Organic matter
- Chemical fertilizers
- Gypsum
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Soil structure refers to the arrangement of soil particles into aggregates.
- Adding organic matter (compost, manure) improves porosity, aeration, and water retention.
- Chemical fertilizers mainly provide nutrients, not structure.
- Gypsum improves sodic soils but not general structure.
- Healthy soil structure promotes root growth and crop yield.
Last verified on 07-02-2026
کراس پولینیٹ ہونے والی فصلوں میں مسلسل خود پولینیشن کے نتیجے میں کیا ہوتا ہے؟
- Improvement in yield
- Poor in performance
- Growth in vegetative parts
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Cross-pollinated crops rely on genetic diversity for vigor.
- Continuous selfing causes inbreeding depression, reducing yield and vitality.
- Traits become homozygous, but plants perform poorly.
- Examples: maize, sunflower, and sorghum show reduced growth with selfing.
- Selfing in cross-pollinated crops is generally avoided in breeding programs.
Last verified on 07-02-2026
کاکوڑا کس قسم کا پودا ہے؟
- An ornamental plant
- Oil producing plant
- Leguminous
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Safflower (Carthamus tinctorius) is a crop grown for its oil-rich seeds.
- The oil is used in cooking, cosmetics, and industrial applications.
- It is a drought-tolerant crop, suitable for arid regions.
- Flowers can be yellow, orange, or red, but mainly for oil production.
Last verified on 07-02-2026
ان بریڈ لائنز کس قسم کے فصلوں میں سلیکشن اور ان بریڈنگ کے ذریعے تیار کی جاتی ہیں؟
- Asexually propagated crops
- Self pollinated crops
- Cross pollinated crops
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Inbred lines are developed by repeated selfing and selection in cross-pollinated crops.
- This produces homozygous lines with stable traits.
- Used in hybrid seed production for crops like maize, sunflower, and sorghum.
- Inbred lines increase uniformity and yield potential in hybrids.
- They are genetically pure lines.
Last verified on 07-02-2026
کپاس کی وہ کون سی نسل ہے جو ٹیکسٹائل انڈسٹری کے لیے بنیادی خام مال فراہم کرتی ہے؟
- Gossypium hirsutum
- Gossypium arboreum
- Gossypium thurberii
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Gossypium hirsutum is the most widely cultivated cotton species globally.
- Provides long, soft fibers ideal for textile production.
- Known as Upland cotton.
- Accounts for over 90% of world cotton production.
Last verified on 07-02-2026
