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

Which type of homogenizer is commonly used for disrupting plant cells?

  1. Dounce homogenizer

  2. Potter-Elvehjem homogenizer

  3. Waring blender

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

Tissue grinders are commonly used for disrupting plant cells due to their ability to handle larger sample volumes and their effectiveness in breaking down tough plant cell walls.

Multiple choice

What is the term for the practice of planting different plant species in close proximity to each other to benefit each other?

  1. Crop rotation

  2. Intercropping

  3. Companion planting

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

Companion planting involves planting different plant species in close proximity to each other to benefit each other, such as by providing pest control, improving soil fertility, or attracting pollinators.

Multiple choice

What is the process of controlling the growth of plants by cutting back their roots called?

  1. Pinching

  2. Pruning

  3. Root pruning

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

Root pruning is the process of controlling the growth of plants by cutting back their roots.

Multiple choice

What is the process of propagating plants from cuttings called?

  1. Grafting

  2. Layering

  3. Division

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

Grafting is the process of propagating plants from cuttings, by joining the stem of one plant to the rootstock of another.

Multiple choice

What is the process of protecting plants from frost or cold weather called?

  1. Hardening off

  2. Mulching

  3. Winterizing

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Hardening off, mulching, and winterizing are all methods of protecting plants from frost or cold weather.

Multiple choice

What is the term for the practice of raising fish and plants together in a symbiotic system?

  1. Aquaculture

  2. Hydroponics

  3. Aquaponics

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

Aquaponics is the practice of raising fish and plants together in a symbiotic system, where the fish waste provides nutrients for the plants, and the plants help filter the water for the fish.

Multiple choice

Which of the following is an example of a plant adaptation?

  1. Producing toxins

  2. Growing thorns

  3. Producing nectar

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

Producing toxins is an example of a plant adaptation, as it helps the plant to defend itself against herbivores.

Multiple choice

How can MAS be combined with other breeding techniques to enhance the efficiency of plant breeding programs?

  1. MAS can be combined with genomic selection to improve the accuracy of selection

  2. MAS can be combined with speed breeding techniques to accelerate the breeding cycle

  3. MAS can be combined with phenomics to identify plants with desirable traits under field conditions

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

MAS can be combined with other breeding techniques to enhance the efficiency of plant breeding programs. For example, MAS can be combined with genomic selection to improve the accuracy of selection, with speed breeding techniques to accelerate the breeding cycle, and with phenomics to identify plants with desirable traits under field conditions. These combinations can help to develop improved crop varieties more quickly and efficiently.

Multiple choice

What is the process of growing plant tissues or cells in a controlled environment called?

  1. Genetic Engineering

  2. Tissue Culture

  3. Biofertilizers

  4. Recombinant DNA Technology
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Tissue culture involves growing plant tissues or cells in a controlled environment, allowing for the rapid propagation of plants and the production of disease-free plants.

Multiple choice

Which technique involves the production of genetically identical copies of plants from a single parent plant?

  1. Genetic Engineering

  2. Tissue Culture

  3. Biofertilizers

  4. Recombinant DNA Technology
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Tissue culture allows for the production of genetically identical copies of plants from a single parent plant, enabling the rapid propagation of plants with desirable traits and the production of disease-free plants.

Multiple choice

What is the term used to describe the practice of growing crops in a controlled environment, often using artificial lighting and hydroponic systems?

  1. Aquaculture

  2. Aeroponics

  3. Hydroponics

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

Hydroponics is the practice of growing crops in a controlled environment, often using artificial lighting and hydroponic systems, where plants are grown in nutrient-rich water solutions without soil.

Multiple choice

The process of formation of new roots from existing roots is known as:

  1. Rhizogenesis

  2. Caulogenesis

  3. Phyllotaxis

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

Rhizogenesis is the process by which new roots are formed from existing roots, enabling the plant to expand its root system.

Multiple choice

The process of formation of new shoots from existing shoots is known as:

  1. Caulogenesis

  2. Rhizogenesis

  3. Phyllotaxis

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

Caulogenesis is the process by which new shoots are formed from existing shoots, enabling the plant to produce branches and increase its photosynthetic capacity.

Multiple choice

What is the process of growing cells in a controlled environment outside of an organism called?

  1. Cell Culture

  2. Tissue Engineering

  3. Genetic Engineering

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

Cell culture is the process of growing cells in a controlled environment outside of an organism.

Multiple choice

Which supporting service is essential for the reproduction of many plant species?

  1. Pollination

  2. Soil formation

  3. Water cycling

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

Pollination is a critical supporting service that enables the reproduction of many plant species, ensuring the continuation of plant life and biodiversity.