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 biology reproductive health twins reproduction and modern technology stds and infertility

Consider the following statements.
In vitro micro propagation has the advantages of.
a. Range of variability
b. Year round availability
c. Small size of explants
d. Production of disease free prop gules.
Which of the statements given are correct?

  1. $1, 2$ and $4$ only
  2. $2, 3$ and $4$ only
  3. $1$ and $3$ only
  4. $1, 2, 3$ and $4$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In vitro micropropagation allows for year-round production, the use of very small explants, and the generation of disease-free plants. Variability is generally avoided in micropropagation as it aims for clonal uniformity.

Multiple choice evs seeds and seeds introduction to plant organs and germination seed to plants germination of seeds

Consider the following statements regarding the introduction of plant materials and seeds.
a. Plant materials and seeds are always introduced from developed countries into developing/less developed countries.
b. The import of living plant materials must be accompanied by a certificate of health to prevent introduction of new disease and insect pests.
c. The superior varieties may be used in hybridization programmes.
Of these statements.

  1. $1, 2$ and $3$ are correct
  2. $1$ and $2$ are correct
  3. $2$ and $3$ are correct
  4. $1$ and $3$ are correct
Reveal answer Fill a bubble to check yourself
A Correct answer
Multiple choice biology cell biology and biotechnology agritourism biotechnology commercial applications of biotechnology

Breeding for disease resistance requires 

  1. A good source of resistance

  2. Planned hybridisation

  3. Disease test

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
To prevent the plants from bacterial, fungal, viral infections, cultivars resistant to diseases is developed which reduce the dependence on fungicide or insecticide. Method of breeding for disease resistant involves:-
  • Screening of germplasm for resistance sources.
  • Hybridization of the selected parent.
  • Selection and evaluation of hybrids.
  • Testing and release of new varieties.
So, the correct option is 'all of the above'.
Multiple choice evs seed becomes plant introduction to reproduction vegetative reproduction budding, vegetative propagation and spore formation other modes of vegetative propagation the journey of seeds

Vegetative propagation is the term used for

  1. Sexual reproduction in animals

  2. Sexual reproduction in plants

  3. Asexual reproduction in animals

  4. Asexual reproduction in plants
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Vegetative propagation (vegetative reproduction) is the formation of new plants from vegetative units such as buds, tubers, rhizomes, etc. This term is used for asexual reproduction in plants. Plants with reduced power of sexual reproduction, long dormant period of seed or poor viability are multiplied easily through vegetative propagation.
So, the correct answer is 'Asexual reproduction in plants'.
Multiple choice evs seed becomes plant introduction to reproduction vegetative reproduction budding, vegetative propagation and spore formation other modes of vegetative propagation the journey of seeds

Which of the following is not used for vegetative propagation?

  1. Bud

  2. Bulbil

  3. Turion

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

In sexually reproduction organisms, the male gamete is called the antherozoid or sperm and the female gamete is known as the egg or ovum. They are not used for vegetative propagation.

So, the correct answer is 'antherozoid'

Multiple choice evs seed becomes plant introduction to reproduction vegetative reproduction budding, vegetative propagation and spore formation other modes of vegetative propagation the journey of seeds

A process of multiplication in which a portion of fragment of plant body function as propagule and develops into new individual is called 

  1. vegetative propagation

  2. sexual propagation

  3. regeneration

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

Vegetative propagation is a form of asexual reproduction in plants where a new individual develops from a fragment or part of the parent plant.

Multiple choice evs seed becomes plant introduction to reproduction vegetative reproduction budding, vegetative propagation and spore formation other modes of vegetative propagation the journey of seeds

Vegetative reproduction by layering is found in:

  1. jasmine

  2. mango

  3. rose

  4. All of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Layering is a common method of vegetative propagation used for plants like jasmine, where a stem is bent to the ground to encourage root growth.

Multiple choice evs seed becomes plant introduction to reproduction vegetative reproduction budding, vegetative propagation and spore formation other modes of vegetative propagation the journey of seeds

Which of the following involves the formation of new plants from roots, stems, and leaves?

  1. Sexual reproduction

  2. Vegetative reproduction

  3. Layering

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Vegetative reproduction involves the formation of new plants from roots, stems, and leaves. It is a form of asexual reproduction of a plant. Only one plant is involved and the offspring is identical to the parent. It mainly involves the mitosis. So, the correct answer is option B.
Multiple choice evs seed becomes plant introduction to reproduction vegetative reproduction budding, vegetative propagation and spore formation other modes of vegetative propagation the journey of seeds

Which is not a method of vegetative propagation?

  1. Micropropagation

  2. Budding

  3. Sowing

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

Vegetative propagation is a form of asexual reproduction of a plant. Here, only one plant is involved and the offspring is the result of one parent. The new plant is genetically identical to the parent.
Micropropagation is the practice of rapidly multiplying stock plant material to produce a large number of progeny plants, using modern tissue culture methods.
Layering is a means of plant propagation, in which a portion of an aerial stem grows roots while still attached to the parent plant and then detaches as an independent plant.
Sowing is to scatter the seeds over the land for growth
So, the correct answer is 'Sowing'

Multiple choice evs seed becomes plant introduction to reproduction vegetative reproduction budding, vegetative propagation and spore formation other modes of vegetative propagation the journey of seeds

Vegetative propagation does not involve the formation of new plants from old 

  1. Roots

  2. Stems

  3. Leaves

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

Vegetative propagation is a form of asexual reproduction of a plant. Only one plant is involved and the offspring is the result of one parent.
Almost all types of shoots and roots are capable of vegetative propagation, including, stems, basal shoots, tubers, rhizomes, stolons, corms, bulbs, and buds. In a few species, even leaves are involved in vegetative propagation. However, flowers are never involved in vegetative propagation.

Multiple choice evs seed becomes plant introduction to reproduction vegetative reproduction budding, vegetative propagation and spore formation other modes of vegetative propagation the journey of seeds

Clones are individuals obtained through

  1. Self pollination

  2. Cross pollination

  3. Vegetative propagation

  4. Hybridisation
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Vegetatively propagated plants are the clone of their own parents because of the following reasons:
1) Fusion of gametes does not take place in vegetative propagation so there is no chance of recombination and variation.
2) The parent cell divides to form daughter cell by mitosis due to which the offspring are genetically identical to the parent.
3) The offspring produced are clones of their parent and have the same number of chromosomes.
Self-pollination, cross-pollination and hybridization involve fusion of gametes so it can cause recombination and the offspring produced are variants, not the clone.
So, the correct answer is option C.
Multiple choice evs seed becomes plant introduction to reproduction vegetative reproduction budding, vegetative propagation and spore formation other modes of vegetative propagation the journey of seeds

Which one of the following statements is not correct regarding vegetative propagation?

  1. Vegetative propagation produces clonal population

  2. Micro propagation is the fastest technique of vegetative propagation

  3. Vegetative propagation can go on round the year

  4. Vegetative propagation helps to eliminate the vrius
Reveal answer Fill a bubble to check yourself
A Correct answer
Multiple choice evs seed becomes plant introduction to reproduction vegetative reproduction budding, vegetative propagation and spore formation other modes of vegetative propagation the journey of seeds

The most significant feature of vegetative propagation is that

  1. It enables rapid production of genetic variation

  2. It is a means of producing a large population of individuals genetically identical to the parent

  3. It ensures that the progeny are safe from attack of diseases and pests

  4. It is an ancient practice
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Vegetative propagation is a form of asexual reproduction of a plant. Only one plant is involved and the offspring is the result of one parent. The new plant is genetically identical to the parent. The offspring of the plants are clones of the original plant since no mixing of DNA occurs. The most common forms of vegetative propagation are grafting, cutting, layering, tuber, bulb or stolon formation, suckering and tissue culture.

So, the correct option is, 'it is a means of producing a large population of individuals genetically identical to the parent'.

Multiple choice evs seed becomes plant introduction to reproduction vegetative reproduction budding, vegetative propagation and spore formation other modes of vegetative propagation the journey of seeds

Offspring produced by vegetative propagation are

  1. haploid

  2. triploid

  3. genetically identical

  4. superior to offspring produced by sexual reproduction
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Asexual reproduction or vegetative reproduction is when offspring are genetically identical to the parent. The offspring of the plants are clones of the original plant since no mixing of DNA occurs. The most common forms of vegetative propagation are grafting, cutting, layering, tuber, bulb or stolon formation, suckering and tissue culture.

So, the correct option is, 'genetically identical'.