SPSC 25 YEARS PAST PAPERS SUBJECT WISE (SOLVED)
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چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
زیادہ تر عام کیڑے مار دوا ______ اکثر استعمال ہوتے ہیں؟
- Craganochlorines
- Organophosphates
- Olegins
- None of these
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Explanation
Organophosphates are the most commonly used pesticides.It affecting the nervous system of pests by inhibiting acetylcholinesterase.They are widely used in agriculture but can be toxic to humans and wildlife.
پیراسیٹائڈ جو کسی دوسرے پرجیوی کو بطور میزبان ______ کھاتا ہے؟
- Ectoparasite
- Endoparasitoid
- Hyperparasitoid
- None of these
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Explanation
A hyperparasitoid is a parasitoid that uses another parasitoid as its host.This forming a multi-level parasitic relationship.This occurs in insect species where secondary parasitoids attack primary parasitoids.
رابڈیٹائڈ لاروا _______ میں پایا جاتا ہے؟
- Life cycle of liverfluke
- Life cycle of tapeworm
- Life cycle of ascaris
- None of these
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Explanation
Rhabditoid larva is an early larval stage found in the life cycle of Ascaris lumbricoides, a parasitic roundworm.It plays a crucial role in the development and infection process of the parasite in its host.
سرخ مرجان کا سائنسی نام ______ ہے؟
- Hydractinia
- Corallium
- Tubipora
- None of these
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Explanation
Corallium is the scientific name for red coral.It is a marine organism known for its hard calcium carbonate skeleton.It is used in jewelry and thrives in deep-sea environments.
حیاتیاتی پرجاتیوں کا تصور ______ کے ذریعہ دیا گیا تھا؟
- Whittaker
- Mayr
- Linnaeus
- None of these
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Explanation
Ernst Mayr proposed the Biological Species Concept (BSC).He defining species as groups of interbreeding natural populations that are reproductively isolated from others.This concept emphasizes reproductive isolation as a key factor in species differentiation.
بایومولیکولس خصوصی طور پر کس نوعیت کے ہیں؟
- Monomeric
- Polymeric
- Dimeric
- All of these
- None of these
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Explanation
Biomolecules like proteins, nucleic acids, and polysaccharides are primarily polymeric.Polymeric is composed of repeating monomeric units.These macromolecules play essential roles in biological processes, including structure, function, and regulation.
سالماتی جینیات کا تعلق ______ سے ہے؟
- Molecular Biology
- Biochemistry
- Bacterial Genetics
- All of these
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Explanation
Molecular genetics studies genes at a molecular level, including DNA structure, function, and expression.It is closely related to molecular biology, biochemistry, and bacterial genetics, as all these fields explore genetic mechanisms.
یہ _______ کا ترمیم شدہ طبقہ ہے؟
- Rod
- Retina
- Pupil
- None of these
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Explanation
The retina is a modified segment of the eye.It is responsible for detecting light and converting it into neural signals.It contains rods and cones, which help in vision under different lighting conditions.
مندرجہ ذیل میں سے کون سا ذہنی عارضہ ہے؟
- Huntington Disease
- Sickle Cell Disease
- Achondroplasia
- None of these
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Explanation
Huntington's disease is a genetic neurodegenerative disorder that affects brain function.This leading to cognitive decline and movement disorders.It is caused by a mutation in the HTT gene, resulting in progressive mental and physical deterioration.
غذا، انفیکشن اور آلودگی کا خوف ______ ہے؟
- Mysophobia
- Algophobia
- Mycophibia
- None of these
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Explanation
Mysophobia is the fear of germs, infection, and contamination, leading to obsessive cleanliness.It is often associated with anxiety disorders and excessive handwashing or avoidance behaviors.
