BIOLOGY
get here top 1000 Biology MCQs
چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
ہمارے ایک پاؤں میں _____ ہڈیاں اور ایک ہاتھ میں _____ ہڈیاں ہیں۔
- 26, 27
- 25, 23
- 27, 26
- 23, 25
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Explanation
There are 26 bones in the human foot and 27 bones in the human hand.
The foot has:
- 7 tarsal bones
- 5 metatarsal bones
- 14 phalanges (toe bones)
The hand has:
- 8 carpal bones
- 5 metacarpal bones
- 14 phalanges (finger bones)
ماحولیاتی نظام میں زندہ چیزوں کا تعلق ایک دوسرے سے کیسے ہے؟
- They affect each other's lives
- They compete for oxygen only
- They live separately
- None of these
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Explanation
In an ecosystem, living things interact by competing, cooperating, and depending on each other for food, shelter, and survival.
These interactions form complex relationships like food chains and symbiosis.
ابال صرف آکسیجن فری یا انیروبک حالات میں پایا جاتا ہے۔ مندرجہ ذیل میں سے کون سی ابال کی کلیدی خصوصیت ہے؟
- It only occurs in muscle cells
- It produces glucose as a byproduct
- It converts sugar into either acid or alcohol
- None of these
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Explanation
Fermentation is an anaerobic process where organisms like yeast or bacteria convert sugars into acid or alcohol, releasing energy.
It does not produce glucose, and it can occur in many cells, not just muscles.
پروفیس کے دوران ، سینٹروسوم دو حصوں میں تقسیم ہوتا ہے۔ سینٹروسوم کے ہر نصف حصے میں کون سا ڈھانچہ تشکیل پایا ہے؟
- Astral rays
- Kinetochore
- Chromatin
- None of these
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Explanation
During prophase, each centrosome forms astral rays, which are star-shaped microtubules radiating outward.
These help in spindle formation and chromosome movement.
مفروضے کے بارے میں کیا سچ ہے؟
- Hypothesis are always proved
- These are merely happy accidents
- These are always tested
- Facts may be collected to prove hypothesis
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Explanation
A hypothesis is a tentative statement or prediction that can be tested through scientific investigation.
It must be subjected to experimentation or observation to determine its validity — it is not always proved but always tested.
- Coil
- Oil.
- Uranium
- None of these
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Explanation
Uranium is not a fossil fuel; Coal and Oil are.
Fossil fuels are formed from the remains of decomposed organic matter (plants and animals) over millions of years.
Uranium, a radioactive element, is not formed from organic matter and is considered a nuclear fuel, not a fossil fuel
- Respiration
- Digestion
- Photosynthesis
- Transpiration
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Explanation
Photosynthesis is the process by which green plants use sunlight, carbon dioxide, and water to produce glucose (a chemical energy source) and oxygen.
It occurs mainly in the chloroplasts of plant cells, which contain chlorophyll.
بچھڑے کے گوشت کو کیا کہتے ہیں؟
- Veal
- Venison
- Chevon
- None of these
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Explanation
Veal is the meat from young calves.
It can come from calves of either sex and any breed.
Most veal is produced from young male calves of dairy breeds not used for breeding.
Veal meat is tender and lighter in color compared to regular beef.
بروسیلوسس کا مخصوص علاج مندرجہ ذیل ہے؟
- Antibiotics
- Antiviral medications
- Antifungal medications
- None of these
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Explanation
Brucellosis is a bacterial infection treated primarily with antibiotics.
Common drugs include doxycycline and rifampin to eliminate the bacteria.
این سی ایل کا کون سا فیصد حل ستنداریوں کے آر بی سی کو آئسوٹونک سمجھا جاتا ہے؟
- 0.75%
- 0.8%
- 0.9%
- None of these
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Explanation
A 0.9% NaCl solution is isotonic to mammalian red blood cells (RBCs).
It prevents osmotic swelling or shrinking of RBCs during intravenous use.