Plant Tissue Culture MCQ Multiple Choice Questions - Page 2 for Practice

Q: 31. Polyethylene glycol is

Correct Answer is: Fusogenic chemical

Q: 33. Protoplasts can be produced from suspension cultures, callus tissues or intact tissues by enzymatic treatment with

Correct Answer is: both cellulotyic and pectolytic enzymes

Q: 34. Somaclonal variations are the ones

Correct Answer is: Produce during tissue culture

Q: 35. Somatic hybridization is achieved through

Correct Answer is: Protoplast fusion

Q: 36. Subculturing is similar to propagation by cuttings because

Correct Answer is: it separates multiple microshoots and places them in a medium

Q: 37. Synthetic seed is produced by encapsulating somatic embryo with

Correct Answer is: Sodium alginate

Q: 38. The ability of the component cells of callus to form a whole plant is known as

Correct Answer is: Redifferentiation

Q: 39. The enzymes required to obtain wall-free / naked protoplasts are

Correct Answer is: Cellulase and Pectinase

Q: 41. The most widely used chemical for protoplast fusion, as fusogen is

Correct Answer is: Polyethylene glycol

Q: 42. The phenomenon of the reversion of mature cells to the meristematic state leading to the formation of callus is known as

Correct Answer is: Dedifferentiation

Plant Tissue Culture MCQ Questions for Practice

31. Polyethylene glycol is

Fusogenic chemical
Electrofusion stimulant
Callus stimulant
Differentiation stimulant

32. Protoplast are the cells devoid of

cell membrane
cell wall
both cell wall and cell membrane
none of these

33. Protoplasts can be produced from suspension cultures, callus tissues or intact tissues by enzymatic treatment with

cellulotyic enzymes
pectolytic enzymes
both cellulotyic and pectolytic enzymes
proteolytic enzymes

34. Somaclonal variations are the ones

Caused by mutagens
Produce during tissue culture
Caused by gamma rays
Induced during sexual embryogeny

35. Somatic hybridization is achieved through

Grafting
Protoplast fusion
Conjugation
Recombinant DNA technology

36. Subculturing is similar to propagation by cuttings because

it separates multiple microshoots and places them in a medium
it uses scions to produce new microshoots
they both use in vitro growing conditions
all of the abov

37. Synthetic seed is produced by encapsulating somatic embryo with

Sodium Chloride
Sodium alginate
Sodium acetate
Sodium nitrate

38. The ability of the component cells of callus to form a whole plant is known as

Redifferentiation
Dedifferentiation
either a or b
none of these

39. The enzymes required to obtain wall-free / naked protoplasts are

Cellulase and Proteinase
Cellulase and Pectinase
Cellulase and amylase
Amylase and Pectinase

40. The first transgenic crop was

Pea
Tobacco
Flax
Cotton

41. The most widely used chemical for protoplast fusion, as fusogen is

Manitol
Sorbitol
Mannol
Polyethylene glycol

42. The phenomenon of the reversion of mature cells to the meristematic state leading to the formation of callus is known as

Redifferentiation
Dedifferentiation
either a or b
none of these

43. The production of secondary metabolites require the use of

Protoplast
Cell suspension
Meristem
Auxillary buds

44. To obtain haploid plant, we culture

Entire anther
Nucleus
Embryo
Apical bud