Practice Life Science MCQs for KP Revenue Authority (KPRA) Assistant / Inspector Everyday Science — topic-wise sets with solved answers.
Q1. What ailment is caused by the blockage of a blood vessel by a blood clot?
Answer: Thrombosis
Explanation: Thrombosis is the formation of a blood clot (thrombus) inside a blood vessel that obstructs blood flow; embolism involves a clot that has broken loose and travelled.
Q2. A biological study of the external form and structure of living organisms and their parts is called:
Answer: Morphology
Explanation: Morphology is the branch of biology concerned with the external form, shape, and structure of organisms and their parts, distinct from internal anatomy.
Q3. Identify the genetic & hereditary disease from the options.
Answer: Sickle-Cell Anemia
Explanation: Sickle-cell anemia is an autosomal recessive genetic disorder caused by a mutation in the HBB gene encoding the beta-globin chain of hemoglobin, making it hereditary.
Q4. What is the weight of the average adult human brain?
Answer: 1.2 to 1.4 kg
Explanation: The average adult human brain weighs approximately 1.4 to 1.6 kg (about 3 pounds), representing roughly 2% of total body weight.
Q5. Where are red blood cells formed?
Answer: Bone marrow
Explanation: Red blood cells (erythrocytes) are produced in the red bone marrow through a process called erythropoiesis, primarily in flat bones like the sternum, ribs, and vertebrae.
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