31. A layer of cells immediately surrounding the ovum but outside the zona pellucida is called__.
[A] germinal epithelium
[B] corona radiata
[C] theca interna
[D] membrane granulosa
Show Answer
Correct Answer: B [corona radiata]
Notes:
A layer of cells immediately surrounding the ovum but outside the zona pellucida is called corona radiata.
32. Wooden tongue in cattle is caused by which of the following bacteria?
[A] Sphaerophorus necrophorus
[B] Clostridium chauvoei
[C] Actinobacillus lignieresi
[D] Erysipelothrix insidiosa
Show Answer
Correct Answer: C [Actinobacillus lignieresi]
Notes:
Wooden tongue in cattle is caused by Actinobacillus lignieresi bacteria.
33. Which of the following are the important applications of biofertilizers?
[A] Seedling root dip
[B] Soil Treatment
[C] Both 1 and 2
[D] Neither 1 nor 2
Show Answer
Correct Answer: C [Both 1 and 2]
Notes:
Seedling root dip, Seed, and Soil Treatment are the important applications of biofertilizers.
34. Which of the following hydrocarbons is produced by oil and fat feedstock?
[A] Bio-ethers
[B] Green Diesel
[C] Re-formulated gasoline
[D] All of the above
Show Answer
Correct Answer: B [Green Diesel]
Notes:
Green diesel is also a type of biofuel, produced by hydrocarbon oil and fat feedstock. Bio-ethers and Re-formulated gasoline are also a type of biofuels.
35. Which two ideas are included in the definition of biotechnology?
[A] Medical biotechnology and Agricultural biotechnology
[B] Traditional biotechnology and Modern molecular biotechnology
[C] Blue biotechnology and Red biotechnology
[D] Green biotechnology and Animal biotechnology
Show Answer
Correct Answer: B [Traditional biotechnology and Modern molecular biotechnology]
Notes:
Traditional biotechnology and Modern molecular biotechnology are two ideas included in the definition of biotechnology.
36. Which organism’s plasmid was first used to construct recombinant DNA?
[A] Cyanobacteria
[B] Bacillus subtilis
[C] Saccharomyces cerevisiae
[D] Salmonella typhimurium
Show Answer
Correct Answer: B [Bacillus subtilis]
Notes:
Bacillus subtilis organism’s plasmid was first used to construct recombinant DNA.
37. In coriander, the useful parts are
____:
[A] Leaves & flowers
[B] Flowers & dried fruits
[C] Roots & leaves
[D] Leaves & dried fruits
Show Answer
Correct Answer: D [Leaves & dried fruits]
Notes:
Coriander (Coriandrum sativum), also known as cilantro, Chinese parsley or dhania, is an annual herb in the family Apiaceae. All parts of the plant are edible, but the fresh leaves and the dried seeds are the parts most traditionally used in cooking.
38. Which of the following diseases are not caused by smog?
[A] Breathing problem
[B] Throat cancer
[C] Skin cancer
[D] Rickets
Show Answer
Correct Answer: D [Rickets]
Notes:
Rickets is the softening and weakening of bones in children, usually because of an extreme and prolonged vitamin D deficiency. Vitamin D promotes the absorption of calcium and phosphorus from the gastrointestinal tract.
39. Which one of the following forms the base of vegetable fibres?
[A] Fats
[B] Oils
[C] Cellulose
[D] Proteins
Show Answer
Correct Answer: C [Cellulose]
Notes:
The principal chemical component of vegetable fibres is cellulose, with varying amounts of lignin and hemicelluloses also usually present; thus, the fibres are also referred to as cellulosic or lignocellulosic. Examples include cotton, hemp, jute, flax, ramie, sisal, bagasse, and banana. Vegetable fibres are usually stiffer but less tough than synthetic fibres.
40. Silk worms feed on
____:
[A] Basil leaves
[B] Mulberry leaves
[C] Curry leaves
[D] Rose leaves
Show Answer
Correct Answer: B [Mulberry leaves]
Notes:
Silk worms are the larva of a moth (Bombyx mori) native to Asia that spins a cocoon of fine, strong, lustrous fiber that is the source of commercial silk. Silkworms feed on the leaves of the mulberries (genus- Morus) and sometimes on the Osage orange (Maclura pomifera).
