1. In which among the following diseases, Seed Therapy is used now a days for treatment?
[A] AIDS
[B] Tuberculosis
[C] Cancer
[D] Asthama
Show Answer
Correct Answer: C [Cancer]
Notes:
Seed Therapy which is based on Sujok Therapy deals with the application of seeds or other parts of plants and attaching it with a tape at a corresponding point in the hand or foot of a person feeling pain. This is used now-a-days for cancer treatment.
2. Amino acids join together to make polypeptides. What polypeptides make by joining together?
[A] Carbohydrates
[B] proteins
[C] vitamins
[D] All the above
Show Answer
Correct Answer: B [proteins]
Notes:
Proteins are made up of chains of amino acids bound by bonds called peptide bond. There are some 22 different known amino acids which can compose proteins. There may be many more unknown to us.
3. In which parts of the body glycogen is stored mainly ?
[A] cartilages & bones
[B] liver and muscles
[C] Spleen
[D] Lungs
Show Answer
Correct Answer: B [liver and muscles]
Notes:
Glycogen is stored mainly in liver and muscles. It is a multibranched polysaccharide of glucose. It serves as a form of energy storage in animals, fungi, and bacteria.
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. Which among the following is the smallest Human Chromosome?
[A] Chromosome 10
[B] Chromosome 16
[C] Chromosome 20
[D] Chromosome 21
Show Answer
Correct Answer: D [Chromosome 21]
Notes:
Made up of 47 million nucleotides, Chromosome 21 is the smallest Human Chromosome.
6. Which among the following is NOT a true bast fiber?
[A] Jute
[B] Hemp
[C] Flax
[D] Cotton
Show Answer
Correct Answer: D [Cotton]
Notes:
Please note that Bast Fibers are obtained from Phloem
7. ‘Dendrochronology’ is the study of the age of which of the following?
[A] Woody Plants
[B] Shrubs
[C] Fungi
[D] All of the above
Show Answer
Correct Answer: A [Woody Plants]
Notes:
Dendrochronology is the branch of biology which studies and estimates the age of woody plants.
8. Which of the following is a polymer of glucose?
[A] Starch
[B] Cellulose
[C] Both a and b
[D] None
Show Answer
Correct Answer: C [Both a and b]
Notes:
Both Starch and Cellulose are the polymers of glucose. Cellulose is a chief structural material of the plants. Both starch and cellulose are made by plants from glucose produced during photosynthesis.
9. Which blood group is universal acceptor?
[A] O+
[B] AB+
[C] AB-
[D] O-
Show Answer
Correct Answer: B [AB+]
Notes:
AB +ve is the universal acceptor blood group or the universal receptors. Because AB+ individuals have all of the possible antigens and therefore are the universal acceptors as their immune system is used to seeing each of the antigens.
10. Which one of the following is a fast growing tree? (UPSC Prelims 1979).
[A] Teak
[B] Eucalyptus
[C] Banyan
[D] Coconut
Show Answer
Correct Answer: B [Eucalyptus]
Notes:
Eucalyptus is the fast growing tree. Most eucalyptus species have a root depth of 1.5-2.0 metre and its root system is more specifically adapted to using rain-fed soil moisture from the upper soil profile, rather than from the groundwater table at considerable depth. The plant is significant for wood availability, livelihood generation and carbon sequestration that address the challenges of global warming and climate change.
