1. Which ancient Indian physician is known as the ‘Father of Surgery’?
[A] Charaka
[B] Sushruta
[C] Nagarjuna
[D] Vagbhatta
Show Answer
Correct Answer: B [Sushruta]
Notes:
Sushruta practiced during the 5th century B.C. many of his contributions to medicine and surgery preceded similar discoveries in the Western world. He is known as the ‘Father of Surgery’.
2. Down Syndrome is also known as:
[A] Edwards syndrome
[B] Patau syndrome
[C] Mongolism
[D] None of the above
Show Answer
Correct Answer: C [Mongolism]
Notes:
Down’s syndrome, also known as trisomy 21, is a genetic disorder caused by the presence of all or part of a third copy of chromosome 21.Down’s syndrome is the most common chromosome abnormality in humans. It is typically associated with a delay in cognitive ability (mental retardation, or MR) and physical growth, and a particular set of facial characteristics
3. Which among the following does not fall in the category of morbid fear or Phobia?
[A] Claustrophobia
[B] Photophobia
[C] Algophobia
[D] Anthophobia
Show Answer
Correct Answer: B [Photophobia]
Notes:
Photophobia is not a fear. It is excessive sensitivity to light and the aversion to sunlight or well-lit places,
Claustrophobia is fear of confined places,
Algophobia is fear of pain,
Anthophobia is fear of flowers,
4. In human body, where do you find the Cone cells and Rod cells?
[A] Retina of the eye
[B] Gallbladder
[C] Esophagus
[D] Villi in the small intestine
Show Answer
Correct Answer: A [ Retina of the eye]
Notes:
Cone cells and Cone cells are one of three types of photoreceptor cells in the retina of the eye. They are responsible for color vision and function best in relatively bright light, as opposed to rod cells, which work better in dim light.
5. Triticale is a hybrid of which two crops?
[A] Wheat and Rice
[B] Wheat and Rye
[C] Rice and Rye
[D] Rice and Sorghum
Show Answer
Correct Answer: B [Wheat and Rye]
Notes:
Triticale is the world’s first man-made cereal developed by crossing wheat (Triticum) and rye (Secale) to combine wheat’s yield and grain quality with rye’s disease resistance and environmental tolerance. The name “triticale” merges “Triticum” and “Secale”, its parent genera.
6. Which of the following is the lowest taxonomic division shared by both man and frog?
[A] Order
[B] Class
[C] Phylum
[D] Family
Show Answer
Correct Answer: C [Phylum]
Notes:
In the kingdom of animals, the phylum Chordata includes the classes of Pisces, Amphibia, Reptilia, Aves and Mammalia. These classes have at some stage in their lives shown common characteristics. So, man and frog belong to the same Phylum in the taxonomical level.
7. In a majority of flowering plants, out of the four megaspores, what is the ratio of functional and degenerate megaspores?
[A] 2:2
[B] 1:3
[C] 4:1
[D] 3:1
Show Answer
Correct Answer: B [1:3]
Notes:
At least one of the spores develop into haploid female gametophytes thus making the ratio of functional and degenerate megaspores is 1:3. Out of the four, three megaspores degenrate.
8. What is the name of the hormone produced by thymus gland?
[A] Thyroxine
[B] Auxins
[C] Cytokinins
[D] Thymosin
Show Answer
Correct Answer: D [Thymosin]
Notes:
The thymus gland produces the hormone thymosin. Thymosin stimulates the development of T cells, which fight disease. The thymus gland is located in the chest, between the lungs and behind the breastbone. It is active until puberty, after which it shrinks and is replaced by fat.
The thymus gland also produces thymopoietin and thymulin. Thymopoietin is a polypeptide hormone made up of 49 amino acids.
9. How does the Hybridisation develop improved crops?
[A] Creating new and better genes
[B] Eliminating undesirable genes
[C] Producing favourable combination of genes
[D] By encouraging favourable genes and removing unfavourable ones
Show Answer
Correct Answer: C [Producing favourable combination of genes]
Notes:
Hybridization is beneficial for improvement in crop production as the Hybrid variety of crops have some special characteristics like good resistance to diseases, improved yield, etc. so they are often sought to have a high production.
10. In Mycorrhiza, symbiotic association occurs between which of the following organisms? (UPSC Prelims 1990)
[A] Bacteria and roots of higher plants
[B] Algae and roofs of orchids
[C] Fungi and roots of higher plants
[D] Protozoa and roots of higher plants
Show Answer
Correct Answer: C [Fungi and roots of higher plants]
Notes:
Mycorrhiza is a symbiotic association between a fungus and a plant. The term mycorrhiza refers to the role of the fungus in the plant’s rhizosphere, its root system.
