Biology

Plant Propagation Techniques

660 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

Horticulture includes the

  1. Rearing of fishes

  2. Rearing of honey bees

  3. Plant propagation and plant breeding

  4. Rearing of milk animals
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Horticulture specifically involves plant propagation and plant breeding for garden crops, fruits, vegetables, and ornamental plants. The other options refer to animal husbandry practices - fish farming (pisciculture), beekeeping (apiculture), and dairy farming.

Multiple choice

Crossing between genetically dissimilar plant varieties is known as

  1. cropping

  2. hybridization

  3. tissue culture

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

Hybridization is the process of crossing genetically different plant varieties to combine desirable traits from both parents. Cropping refers to growing systems, tissue culture involves growing cells artificially, and insemination is an animal breeding term.

Multiple choice

Consider the following statements:

  1. Centre for DNA Fingerprinting and Diagnostics (CDFD), an Indian Biotechnology research center, is located in Bangalore.
  2. The change in genetic makeup takes place during vegetative propagation of plants.

Which of the given statements is/are incorrect?

  1. Only (1)

  2. Only (2)

  3. Both (1) and (2)

  4. Neither (1) nor (2)
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Statement (1) is incorrect. Centre for DNA Fingerprinting and Diagnostics (CDFD), an Indian Biotechnology research center, is located in Hyderabad. Statement (2) is also incorrect. The change in genetic makeup takes place only during the sexual reproduction. In vegetative propagation, a part/portion of a plant is cultivated that gives rise to the new plant. E.g. Bud grafting, layering, etc

Multiple choice

If pea is a biennial plant, what does that mean?

  1. Two varieties of a pea plant can be grown in a year.

  2. Pea plants can be planted only during two months of winter.

  3. Pea plants are grown after every two years in the same field.

  4. The biological life cycle of a pea plant completes in 2 years.

  5. Two species of a pea plant can be grown simultaneously.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Yes, it is correct. A biennial plant is a plant that takes two years to complete its biological lifecycle.

Multiple choice

Consider the following statements: (i) Parasites secrete digestive juices on the matter they live and convert it into a solution and then absorb it. (ii) Hydroponics is a method of growing plants using mineral nutrient solutions in water without soil.

Which of the given statements is/are correct?

  1. Only (i)

  2. Only (ii)

  3. Both (i) and (ii)

  4. Neither (i) nor (ii)
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

(I) Statement (1) is wrong. Those organisms which live in or on other organisms and depend on them for their nutrition are called parasites. (II) Statement (2) is correct. It is a method of hydroculture in which plants are grown using mineral nutrient solutions in water without soil.

Multiple choice

Clones can be obtained by:

  1. tissue culture, micro-propagation and asexual reproduction

  2. tissue culture, micro-propagation and somatic hybridization

  3. transplantation, micro-propagation and somatic hybridization

  4. recombinant DNA technology, tissue culture and somatic hybridization

  5. recombinant DNA technology, asexual reproduction and transplantation
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Clones can be obtained by all the three methods.

Multiple choice

Which of the following statements about vegetative propagation is incorrect?

  1. It can occur more rapidly than seed propagation.

  2. Plants that produce lots of flowers and seeds are the ones that choose vegetative propagation.

  3. It allows a genetically superior plant to produce unlimited copies of itself without variation.

  4. Bulbs of onions are also a method of vegetative propagation.

  5. Layering and grafting are means of artificial vegetative propagation.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Since flowers and seeds are related to sexual propagation, plants that rarely produce flowers or seeds like potato choose vegetative propagation.