21. Which among the below is not a food plant?
[A] Allium cepa
[B] Allium sativum
[C] Asparagus officinalis
[D] Atropa belladona
Show Answer
Correct Answer: D [Atropa belladona]
Notes:
Atropa belladonna, commonly known as belladonna or deadly nightshade, is a poisonous perennial herbaceous plant in the nightshade family Solanaceae. Allium cepa, Allium sativum and Asparagus officinalis are food plants.
22. 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.
23. From which part, Coconut coir is obtained?
[A] Epicarp
[B] Mesocarp
[C] Endocarp
[D] Seed
Show Answer
Correct Answer: B [Mesocarp]
Notes:
Coir is the nature fibre obtained from mescocarp of the coconut fruit. Coconut fruit has three layers viz. Exocarp, MesoCarp and Endocarp. Exocarp is the outer green layer, Mesocarp is the fleshy, which becomes husk on drying middle layer and endocarp is the inner woody layer.
24. Which among the following vitamins is involved in the breakdown of energy molecules such as glucose?
[A] Vitamin A
[B] Vitamin B
[C] Vitamin C
[D] Vitamin D
Show Answer
Correct Answer: B [Vitamin B]
Notes:
Vitamin B is involved in the breakdown of energy molecules such as glucose. Vitamin B are a class of water-soluble vitamins which play an important role in cell metabolism.
25. It has been demonstrated by the scientists that, certain wines such as Red Wine posses health benefits because they contain antioxidants, which work in the body as Free Radical Scavengers and slow the oxidation of other molecules by capturing the free radicals. Which among the following is the most common antioxidant found in Red Wine?
[A] Catechin
[B] Tetrodotoxin
[C] Polyphenol
[D] Tocopherol
Show Answer
Correct Answer: C [Polyphenol]
Notes:
The most common antioxidant found in Red Wine is Polyphenol. It has been demonstrated by the scientists that, certain wines such as Red Wine posses health benefits because they contain antioxidants, which work in the body as Free Radical Scavengers and slow the oxidation of other molecules by capturing the free radicals.
26. Which among the following group represents the most commonly found cancers in the world?
[A] Carcinoma
[B] Sarcoma
[C] Lymphoma
[D] Germ cell tumor
Show Answer
Correct Answer: A [Carcinoma]
Notes:
Carcinoma group represents the most commonly found cancers in the world. Carcinoma is a cancer which begins in a tissue that lines the inner or outer surfaces of the body, and that arises from cells originating in the endodermal, mesodermal or ectodermal germ layer during embryogenesis.
27. Which of the following plant growth hormone was recognized by Japanese scientists?
[A] Auxin
[B] Gibberellins
[C] Abscisic acid
[D] Cytokinin
Show Answer
Correct Answer: B [Gibberellins]
Notes:
Gibberellins, first recognized in 1926 by a Japanese scientist, Eiichi Kurosawa. He was studying foolish seedling disease in Rice called as bakanae
28. Consider the Following:
- Crop Rotation helps in avoiding the building up of Pathogens
- Crop Rotation avoids Excessive depletion of Soil Nutrients
- Crop Rotation involves alternative cultivation of cereals like wheat
Which among the above statements are correct?
[A] 1 & 2 only
[B] 2 only
[C] 1 & 3 only
[D] All are correct
Show Answer
Correct Answer: A [1 & 2 only]
Notes:
There is alternate cultivation, but cereals with other crops. This is basically done by alternating the deep rooted crops and shallow rooted crops in alternation.
29. What name has been given to the fear of crossing roads?
[A] Arthrophobia
[B] Atychiphobia
[C] Aichmophobia
[D] Agyrophobia
Show Answer
Correct Answer: D [Agyrophobia]
Notes:
The fear of crossing roads is called Agyrophobia. This phobia is considered to be independent from the fear of cars, as even crossing a deserted intersection still initiates the fear reaction.
30. Which among the following is found in a Bacteriophage?
[A] only RNA
[B] only DNA
[C] Both RNA & DNA
[D] Either RNA or DNA
Show Answer
Correct Answer: D [Either RNA or DNA]
Notes:
Either RNA or DNA is found in a Bacteriophage. A bacteriophage which is also informally known as a phage, is a virus that infects and replicates within bacteria and archaea.
