Biology

Plant Propagation Techniques

591 Questions

Plant propagation techniques cover both natural and artificial methods of cultivating plants, including micropropagation, tissue culture, and layering. These botanical concepts evaluate how desirable characteristics are multiplied and transferred into new plants. Questions on this topic routinely feature in the biology segment of various state and central competitive exams.

Micropropagation methodsArtificial vegetative propagationPlant tissue cultureLayering techniquesMeristem differentiation

Plant Propagation Techniques Questions

Multiple choice

Pathogen-free plants can be obtained through

  1. clean cultivation

  2. embryoid cultivation

  3. bud or shoot tip propagation on culture medium

  4. grafting
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Pathogen-free plants can be obtained through bud or shoot tip propagation on culture medium as it has aseptic environmental conditions.

Multiple choice

Differentiation of callus into plant parts is

  1. Embryogenesis

  2. Embryoid formation

  3. Morphogenesis

  4. Totipotency
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Morphogenesis is the biological process that causes an organism to develop its shape. It is one of three fundamental aspects of developmental biology along with the control of cell growth and cellular differentiation.

Multiple choice

The problem of necrosis and gradual senescence while performing tissue culture can be overcome by

  1. Spraying cytokinins

  2. Spraying auxin

  3. Subculture

  4. Suspension culture
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

a subculture is a new cell or microbiological culture made by transferring some or all cells from a previous culture to fresh growth medium. This action is called subculturing or passaging the cells. Subculture is used to prolong the life and/or expand the number of cells or microorganisms in the culture.

Multiple choice

Which of the following correctly defines micro propagation?

  1. Raising of plants from a small tissue in culture

  2. Multiplication of small plants

  3. Propagation of small parts of organisms

  4. Indefinite maintenance of an organ or tissue
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Raising of plants from a small tissue in culture is called micro propagation.It is used to multiply novel plants, such as those that have been genetically modified or bred through conventional plant breeding methods.

Multiple choice

The branch of botany comprising the artificial cultivation of cells into mature fruit forming plants is known as

  1. anatomy

  2. morphology

  3. physiology

  4. tissue culture
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The branch of botany comprising the artificial cultivation of cells into mature fruit forming plants is known as tissue culture. Single cells, plant cells without cell walls (protoplasts), pieces of leaves, stems or roots can often be used to generate a new plant on culture media given the required nutrients and plant hormones.

Multiple choice

By which of the following methods can a disease free plant be produced?

  1. Grafting

  2. Layering

  3. Cutting

  4. Tissue culture
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A disease free plant can be produced by the method of tissue culture.Plant tissue culture is a collection of techniques used to maintain or grow plant cells, tissues or organs under sterile conditions on a nutrient culture medium of known composition.

Multiple choice

The propagation of plants by tissue culture technique is becoming popular because

  1. the plants produced have uniform growth and productivity characteristics

  2. most plants respond to this technique

  3. variability can be increased

  4. it is the most simple technique
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The propagation of plants by tissue culture technique is becoming popular because the plants produced have uniform growth and productivity characteristics.

Multiple choice

Sugarcane is cultivated through

  1. stem cutting

  2. root cutting

  3. true seed

  4. adventitious roots
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Sugarcane is cultivated through stem cutting.

Multiple choice

The stem of a jute plant is immersed in water for

  1. harvesting

  2. easy separation of fibre

  3. early flowering

  4. suitable cultivation
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The stem of a jute plant is immersed in water for the easy separation of jute fibers. The stem then rots and the fibers are separated by hand. 

Multiple choice

When is the stem of the jute plant immersed in water?

  1. After harvesting

  2. Before flowering

  3. After bud formation

  4. After germination
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The stem of jute plant is the source of jute fibres. The jute stem is immersed in water for a few days after harvesting, so that the stem may rot and fibers may be separated by hand. 

Multiple choice

Banana is cultivated by means of

  1. rhizome

  2. underground properties

  3. stolons

  4. roots
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Rhizome is a continuously growing horizontal underground stem which puts out lateral shoots and adventitious roots at intervals. Banana is cultivated as a rhizome.