1. Which among the following hormone can be used as a drug to treat cardiac arrest and some other cardiac problems?
[A] Thyroxin
[B] Epinephrine
[C] Calcitonin
[D] Insulin
Show Answer
Correct Answer: B [Epinephrine]
Notes:
Epinephrine which is also known as adrenaline, is a medication and hormone. It is used to treat a number of conditions, including cardiac arrest, anaphylaxis, , asthma, and superficial bleeding.
2. Reserpine is categorized as which type of drug?
[A] Narcotic
[B] Anti-histamine
[C] Tranquilizer
[D] None of the above
Show Answer
Correct Answer: C [Tranquilizer]
Notes:
Reserpine is a tranquilizer drug that was extensively used in the mid-20th century for treating high blood pressure and psychosis. Derived from the roots of the Indian Snakeroot plant, it has a calmative effect. While not majorly used today due to side effects like depression, it was a significant stepping stone in the development of modern psychiatric medications. Its primary action is to deplete catecholamines and serotonin from the body.
3. Digestion is not a function of which of the following ?
[A] Biotin
[B] Pepsin
[C] Renin
[D] None of the above
Show Answer
Correct Answer: A [Biotin]
Notes:
Biotin also called vitamin H, vitamin B₇ or vitamin B₈ is a water-soluble B vitamin. It is also known as vitamin H. Biotin is not a used in the Digestion of food.
4. Who among the following scientists is known for developing techniques for DNA fingerprinting and DNA profiling which are now used all over the world in forensic science to assist police detective work?
[A] Vernon Heywood
[B] Patrick Laidlaw
[C] Alec Jeffreys
[D] Heinz Wolff
Show Answer
Correct Answer: C [Alec Jeffreys]
Notes:
Alec Jeffreys scientists is known for developing techniques for DNA fingerprinting and DNA profiling which are now used all over the world in forensic science to assist police detective work.
5. The bacterium ‘Escherichia coli’ is found mainly in:
[A] Human Intestine
[B] Pteridophytes
[C] Root Nodules of leguminous plants
[D] Paddy fields for nitrogen fixation
Show Answer
Correct Answer: A [Human Intestine]
Notes:
Escherichia coli, also known as E. coli, is a Gram-negative, facultative anaerobic, rod-shaped, coliform bacterium of the genus Escherichia. It is a type of bacteria that normally lives in your intestines.
6. Which of the following is the largest invertebrate?
[A] Arthropod
[B] Echinoderm
[C] Mollusc
[D] Sponge
Show Answer
Correct Answer: C [Mollusc]
Notes:
Molluscs, such as squid, cuttlefish and octopus, are among the most neurologically advanced of all invertebrates—and either the giant squid or the colossal squid is the largest known invertebrate species.
7. Which of the following correctly define Amniocentesis? (UPSC Prelims 1988)
[A] Determination of foetal sex
[B] Separation of amino acids
[C] Determination of the sequence of amino acids in a protein
[D] Inducing abortion
Show Answer
Correct Answer: A [Determination of foetal sex]
Notes:
Amniocentesis is a medical procedure used primarily in prenatal diagnosis of chromosomal abnormalities and foetal infections, as well as for sex determination.
8. Which of the following clearly define Pyrilla? (UPSC Prelims 1991)
[A] Disease of teeth and gums
[B] An insect pest
[C] A character of ancient Greek mythology
[D] A building heated by solar energy
Show Answer
Correct Answer: B [An insect pest]
Notes:
Adult Pyrilla perpusilla is a pale tawny-yellow, soft-bodied insect with head prominently drawn forward to form a snout. Both adults and nymphs are very active and suck sap from the leaves of sugarcane. On the slightest disturbance, they jump from leaf to leaf.
9. The bats are able to fly in dark since their wings produce which of the following waves? (UPSC Prelims 1992)
[A] Infrared rays
[B] Ultrasonic waves
[C] Sound waves
[D] Ultraviolet rays
Show Answer
Correct Answer: B [Ultrasonic waves]
Notes:
Bats can fly in dark because they. Bat echolocation is very much similar to a SONAR and is a perceptual system where ultrasonic sounds are emitted specifically to produce echoes.
10. Which vitamin is also called as riboflavin?
[A] Vitamin B1
[B] Vitamin B2
[C] Vitamin B3
[D] Vitamin B6
Show Answer
Correct Answer: B [Vitamin B2]
Notes:
Vitamin B2 is also called as riboflavin. Chemical formula of vitamin B2 is C17H20N4O6.
