Variations caused by mutation, as proposed by Hugo de Vries are
A) small and directionless B) random and directional C) random and directionless D) small and directional Answer: C) random and directionless... View Article
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Which of these following methods is the most suitable for disposal of nuclear waste?
A) Bury the waste within rocks deep below the Earth’s surface B) Shoot the waste into space C) Bury the... View Article
Purines found both in DNA and RNA are
A) Cytosine and thymine B) Adenine and thymine C) Adenine and guanine D) Guanine and cytosine Answer: C) Adenine and guanine... View Article
The shorter and longer arms of a submetacentric chromosome are referred to as
A) m-arm and n-arm respectively B) s-arm and l-arm respectively C) p-arm and q-arm respectively D) q-arm and p-arm respectively... View Article
The ciliated epithelial cells are mainly present in
A) Bronchioles and Fallopian tubes B) Bile duct and Bronchioles C) Fallopian tubes and Pancreatic duct D) Eustachian tube and... View Article
Respiratory Quotient (RQ) value of tripalmitin is
A) 0.9 B) 9 C) 7 D) 0.7 Answer: C) 0.7 Explanation: Respiratory quotient (RQ) is the ratio of the volume of carbon dioxide... View Article
Which of the following statements is correct regarding cornea?
A) Cornea consists of a dense matrix of collagen and is the most sensitive portion of the eye. B) Cornea... View Article
Which of the following glucose transporters is insulin-dependent?
A) GLUT IV B) GLUT I C) GLUT II D) GLUT III Answer: A) GLUT IV Explanation: GLUT IV is mostly... View Article
The concept of Omnis cellula-e cellula regarding cell division was first proposed by
A) Aristotle B) Rudolf Virchow C) Theodor Schwann D) Schleiden Answer: B) Rudolf Virchow Explanation: Rudolf Virchow explained that the new... View Article
Xylem translocates
A) Water, mineral salts, some organic nitrogen and hormones B) Water only C) Water and mineral salts only D) Water,... View Article
Which of the following can be used as a biocontrol agent in the treatment of plant disease?
A)Lactobacillus B)Trichoderma C) Chlorella D) Anabaena Answer: B)Trichoderma Explanation: Trichoderma is a fungus. It is used as a biocontrol agent against... View Article
The Earth Summit held in Rio de Janeiro in 1992 was called
A) for immediate steps to discontinue use of CFCs that were damaging the ozone layer B) to reduce CO2 emissions... View Article
Which of the following muscular disorders is inherited?
A) Botulism B) Tetany C) Muscular dystrophy D) Myasthenia gravis Answer: C) Muscular dystrophy Explanation: Muscular dystrophy is mostly a genetic... View Article
Select the correct option of animal groups which possess all the characteristics
Consider the following features (a) Organ system level of organisation (b) Bilateral symmetry (c) True coelomates with segmentation of body... View Article
Conversion of glucose to glucose-6-phosphate, the first irreversible reaction of glycolysis, is catalyzed by
A) Phosphofructokinase B) Aldolase C) Hexokinase D) Enolase Answer: C) Hexokinase Explanation: Hexokinase catalyses the conversion of glucose to glucose-6-phosphate. ATP... View Article
The combination of hormones that can induce flowering in pineapple plants is
A) Cytokinin and Abscisic acid B) Auxin and Ethylene C) Gibberellin and Cytokinin D) Gibberellin and Abscisic acid Answer: B) Auxin... View Article
Which of the following statements is incorrect regarding fungi?
A) Yeasts have filamentous bodies with long thread-like hyphae. B) Morels and truffles are edible delicacies. C) Claviceps is a... View Article
Which of the following contraceptive methods do involve a role of hormone?
A) Pills, Emergency contraceptives, Barrier methods. B) Lactational amenorrhea, Pills, Emergency contraceptives. C) Barrier method, Lactational amenorrhea, Pills. D) CuT,... View Article
Phloem in gymnosperms lacks
A) Both sieve tubes and companion cells B) Albuminous cells and sieve cells C) Sieve tubes only D) Companion cells... View Article
Cell in G0 phase
Choose the correct answer: A) exit the cell cycle B) enter the cell cycle C) suspend the cell cycle D)... View Article
