LECTURER ZOOLOGY PAST PAPERS AND SYLLABUS
چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
کلاس آراکنڈا کے درج ذیل میں سے کون سے ارکان بنیادی طور پر طفیلی ہوتے ہیں؟
- Spider
- Ticks & Mites
- Trilobites
- Scorpions
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Explanation
- Ticks and mites are primary parasitic arachnids.
- They live on or inside host organisms and feed on blood or tissues.
- They can transmit diseases to humans and animals.
- Other arachnids are mostly free-living predators.
Last verified on 04-06-2026
انسانی جسم میں خون جمنے کے لیے درج ذیل میں سے کون سا ضروری ہے؟
- Phylloquinone
- Ergocalciferol
- Retinol
- All of these
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Explanation
- Phylloquinone is Vitamin K₁.
- It is essential for blood coagulation (clotting).
- It helps in synthesis of clotting factors in the liver.
- Without it, blood clotting process is impaired.
Last verified on 04-06-2026
لبلبہ سے خارج ہونے والا پولی پیپٹائیڈ ہارمون کون سا ہے؟
- Glycagon
- Ptyalin
- Glycogen
- Pancreozymin
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Explanation
- Glucagon is a polypeptide hormone secreted by the pancreas.
- It increases blood glucose level in the body.
- It works opposite to insulin.
- It is produced by alpha cells of islets of Langerhans.
Last verified on 04-06-2026
ڈاؤن سنڈروم کس وجہ سے ہوتا ہے؟
- Nondisjunction of chromosomes
- Crossing over between genes
- Linkages of genes
- Sex linked inheritance
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Explanation
- Down’s syndrome is caused by an extra copy of chromosome 21.
- This occurs due to nondisjunction during meiosis.
- Nondisjunction means chromosomes fail to separate properly.
- It results in trisomy 21 condition.
Last verified on 04-06-2026
بڑھاپے میں کون سا غدہ غیر فعال ہو جاتا ہے؟
- Pituitary
- Thymus
- Adrenal
- Pineal
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Explanation
- Thymus gland becomes inactive during old age.
- It is active during childhood for immune system development.
- It helps in maturation of T-lymphocytes (T cells).
- After puberty, it gradually shrinks and loses function.
Last verified on 04-06-2026
ٹرائلوبائٹس کس دور میں ارتقاء پذیر ہوئے؟
- Precambrian
- Ordovician
- Silurian
- Cambrian
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Explanation
- Trilobites first evolved during the Cambrian period.
- Cambrian Period → ~541–485 million years ago
- This period is known for the “Cambrian Explosion” of life forms.
- Trilobites were early marine arthropods.
- They became one of the most successful ancient fossil groups.
Last verified on 04-06-2026
مندرجہ ذیل میں سے کون سا خلیاتی عضیہ صرف پروٹوزوا میں پایا جاتا ہے؟
- Plasma membrane
- Cilia
- Contractile vacuole
- Pseudopodia
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Explanation
- Contractile vacuole is an organelle found in protozoans.
- It helps in removing excess water from the cell.
- It maintains water balance (osmoregulation).
- It prevents the cell from bursting in freshwater environments.
Last verified on 04-06-2026
وہ کون سے لیمفوسائٹس ہیں جو پلازما جھلی میں سوراخ بناتے ہیں؟
- B cells
- Killer or Cytotoxic T cells
- Suppressor T cells
- Helper T cells
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Explanation
- Cytotoxic T cells are responsible for killing infected or abnormal cells.
- They create pores (holes) in the target cell membrane.
- This leads to cell death through lysis.
- They are an important part of cell-mediated immunity.
Last verified on 04-06-2026
- With
- To
- About
- For
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- “About” is used to express concerning or relating to someone.
- The sentence shows admiration or special quality related to a person.
- “Something wonderful about him” is a correct and natural English structure.
Last verified on 04-06-2026
- Under
- In
- Of
- Along
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Explanation
- “Under” means below something in position.
- A river flowing beneath a bridge is expressed as “under the bridge.”
Last verified on 04-06-2026
