General Science and Ability

**Which of the following is not a part of DNA?**A) ThymineB) AdenineC) RiboseD) None of these Show Answer Correct Answer: C – Ribose

**Ball bearings help wheels and other rotating objects:**A) Move without consuming any energyB) Rotate more easily and with less frictionC) Both a & bD) None of these Show Answer Correct Answer: B – Rotate more easily and with less friction

**Photography works by:**A) Capturing the souls of the objects being photographedB) Capturing light reflected from the object being photographedC) Both a & bD) None of these Show Answer Correct Answer: B – Capturing light reflected from the object being photographed

**Arthur C. Clarke, the famous science fiction author, while working as a radio operator in the British army in World War 2:**A) Proposed building a space elevator from carbon mono-filamentsB) Postulated the existence of extra-terrestrial artifacts on the moonC) Proposed that a network of satellites in stationary orbit at very high altitudes around the earth…

**The Sino-Pakistani JF-17 Thunder aircraft:**A) Is a commercial transport aircraftB) Is neither built nor assembled in PakistanC) Has no stealth features in its engine inlets or elsewhereD) None of these Show Answer Correct Answer: C – Has no stealth features in its engine inlets or elsewhere

**Communication satellites are in:**A) Geostationary orbitB) Geosynchronous orbitC) Semi-synchronous orbitD) None of these Show Answer Correct Answer: A – Geostationary orbit

**RAM of a computer refers to:**A) Read access memoryB) Right access memoryC) Random access memoryD) None of these Show Answer Correct Answer: C – Random access memory

**Which of the following is responsible for transporting oxygen in the blood:**A) White blood cells (WBC)B) NeutrophilsC) Red blood cells (RBC)D) None of these Show Answer Correct Answer: C – Red blood cells (RBC)

**Which of the following hormones is an amino acid derivative except:**A) EpinephrineB) MelatoninC) Thyroxine (T4)D) None of these Show Answer Correct Answer: D – None of these

**All of the following are part of a prokaryotic cell except:**A) DNAB) A cell wallC) A plasma membraneD) An endoplasmic reticulum Show Answer Correct Answer: D – An endoplasmic reticulum