LECTURER ZOOLOGY PAST PAPERS AND SYLLABUS
چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
ایتھیرین بیضوی ______ ہے؟
- Mesolecithal
- Alecithal
- Polylecithal
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Eutherian mammals (placental mammals) have an alecithal ovum.This meaning it contains little to no yolk because the embryo receives nutrition from the placenta.In contrast, mesolecithal and polylecithal eggs contain moderate and large amounts of yolk, respectively.
لابڈ فائن مچھلی کو معدوم سمجھا جاتا تھا جب تک کہ لاتیمیریا ______ میں پھنس گیا تھا؟
- 1967
- 1939
- 2001
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
The Coelacanth (Latimeria), a lobe-finned fish, was believed to be extinct until its discovery in 1939 off the coast of South Africa.It is considered a "living fossil" due to its ancient lineage.
ایک مولسکس کا خول ______ کے ذریعہ چھپا ہوا ہے؟
- Visceral mass
- Radula
- Mantle
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
The mantle is a specialized tissue in mollusks that secretes calcium carbonate to form the shell.It also plays a role in respiration and excretion.
لامارک کا ارتقائی نظریہ _____ پر مبنی تھا؟
- Survival of the fittest
- Natural selection
- Inheritance of acquired characteristics
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Lamarck proposed that organisms develop traits during their lifetime in response to their environment and pass them on to offspring.This theory, called Lamarckism, was later disproven by modern genetics.
اسپونگوکوئیل کے اوپری حصے میں واحد بڑی افتتاحی _____ کہلاتی ہے؟
- Osculum
- Ostium
- Mouth
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
The osculum is the large opening at the top of the spongocoel in sponges, through which water exits.It plays a key role in the water filtration system of sponges.
ڈارون کی سب سے اہم اشاعت ______ تھی؟
- Origin of species
- Theory of uniformitarianism expedition
- Principles of geology
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Charles Darwin's book "On the Origin of Species" (1859) introduced the theory of natural selection.It is considered the foundation of modern evolutionary biology.
وہ ڈھانچے جو کھردری اینڈوپلاسمک ریٹیکولم کو کھردرا بناتے ہیں وہ ______ ہیں؟
- Nucleosomes
- Ribosomes
- Peroxisomes
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
The rough endoplasmic reticulum (RER) appears rough due to the presence of ribosomes attached to its surface.These ribosomes are responsible for protein synthesis.
لاروا شکل میں جنسی پختگی کو ______ کہا جاتا ہے؟
- Neoteny
- Syngamy
- Pubescent
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Neoteny is the phenomenon where an organism retains its larval characteristics even after reaching sexual maturity.An example is axolotls, which remain in their aquatic larval form but can reproduce.
نیڈیرینس کا مفت تیراکی لاروا مرحلہ _____ ہے؟
- Colloblast
- Planula
- Trochophore
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Planula is the free-swimming larval stage of cnidarians (e.g., jellyfish, corals).It is a ciliated, oval-shaped larva that eventually settles and develops into a polyp.
پروٹوزوان جینس جو انسانوں میں نیند کی بیماری کا سبب بنتی ہے وہ _____ ہے؟
- Trypanosoma
- Glossina
- Plasmodium
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Trypanosoma is a protozoan parasite responsible for African sleeping sickness in humans.It is transmitted by the tsetse fly (Glossina).
