SPSC LECTURER ZOOLOGY PAST PAPERS 2000 TO TILL DATE
Zoology 5 years Past Papers Click here
چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
سینٹومیر کا کام _____ ہے؟
- Formation of RNA
- Duplication of chromosomes
- Movement of chromosomes
- None of these
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Explanation
The centromere is the region of a chromosome where spindle fibers attach during cell division.It ensures the proper movement and segregation of chromosomes during mitosis and meiosis.
سیل میں مائٹوکونڈریا کے عمل کو پہلے _______ کے ذریعہ بیان کیا گیا تھا؟
- Leeuwenhoek
- Altmann
- De Duve
- None of these
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Explanation
Richard Altmann first described mitochondria as "bioblasts" in 1890.He proposed that they were independent living entities within cells.
پروٹونیماتا باقیات ______ کے طور پر استعمال کی جاسکتی ہیں؟
- Alersaive
- Filtering agent
- Building stones
- None of these
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Explanation
Protonemata remains, especially from mosses like Sphagnum.They are used as filtering agents due to their high water retention capacity.They help in purifying water by trapping impurities and sediments.
مکھی کالونی کے ممبر ______ کے ذریعہ ایک دوسرے کو پہچانتے ہیں؟
- Touch
- Dance
- Smell
- None of these
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Explanation
Bees recognize colony members through pheromones, which are chemical signals.These pheromones help maintain hive organization and prevent intruders.
ٹڈی سبزی خوروں کا تنہائی ہوسکتا ہے۔ یہ ______ پر منحصر ہے؟
- Own variety
- Weather conditions
- Food condition
- None of these
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Explanation
Locusts shift between solitary and gregarious phases based on food availability.When food is scarce, they gather in swarms, triggering behavioral and physiological changes.
منظم کیڑے مار دوا ______؟
- Enter the insects through spiracles
- Are short direction effects
- Enter the insects through cuticle
- None of these
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Explanation
Systematic insecticides primarily enter insects through spiracles (respiratory openings).Once inside, they are absorbed into the insect’s body, affecting its nervous system.
سچ اور مکمل میٹامورفوسس _____ میں ہوتا ہے؟
- Moth
- Silverfish
- Grasshopper
- None of these
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Explanation
True and complete metamorphosis (holometabolism) consists of four stages: egg, larva, pupa, and adult.Moths undergo complete metamorphosis.
ویکیئر کیڑے کیا کرتے ہیں؟
- Destroy crops
- Spread diseases
- Spoil soil
- None of these
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Explanation
Vacier (or voracious) insects, such as locusts and caterpillars, consume large amounts of plant matter, leading to severe crop damage.They pose a significant threat to agriculture by reducing yields and affecting food supply.
پلازموڈیم _____ میں دریافت ہوا؟
- 1883
- 1683
- 1783
- None of these
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Explanation
Plasmodium, the malaria-causing parasite.It was discovered by Charles Louis Alphonse Laveran in 1880, and its role in malaria transmission was later confirmed.The year 1883 is often associated with further research on Plasmodium and its lifecycle.
ملیریا ______ میں زیادہ عام ہے؟
- Eastern areas
- Tropical areas
- Southern areas
- None of these
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Explanation
Malaria is more common in tropical areas due to warm temperatures, which favor mosquito breeding.These regions provide ideal conditions for the malaria parasite to complete its life cycle.
