What Is Explant and Preparation of Explant

Q.

An explant is a

1. Part of the plant

2. Part of the plant used in tissue culture

3. Dead plant

4. Part of the plant which expresses a specific gene

Q.

To obtain virus-free healthy plants from a diseased one by tissue culture technique, which part/parts of the diseased plant will be taken?

1. Epidermis only

2. Apical meristem only

3. Both apical and axillary meristems

4. Palisade parenchyma

Q. What do we call the undifferentiated mass of cells formed during tissue culture?​

Q. Which part would be most suitable for raising virus free plants for micropropagation ?

1. Meristem
2. Node
3. Bark
4. Vascular tissue

Q. Somaclones are obtained by

1. plant breeding
2. irradiation
3. genetic engineering
4. tissue culture

Q.

Pathogen-free plants are obtained from

1. Shoot meristem culture

2. Seeds

3. Root culture

4. Embryo culture

Q. Explant is

1. Plant developed in the external environment.
2. Plant part used to regenerate whole plants on nutrient medium.
3. Plants developed from polyembryonic seeds.
4. Excised parts of plants used for vegetative propagation.

Q.

Find out what the various components of the medium used for propagation of explants in vitro are?

Q.

Explain in brief the various components of the medium used for propagation of an explant in vitro ?

Q. Plant piece used in tissue culture is called ____________.

1. Somaclone
2. Clone
3. Inoculant
4. Explant

Q. Explain the term Explant.

Q. Give any two factors responsible for genetic variations. Define explant.

Q.

Any cell, tissue or an organ removed from a plant for the purpose of culturing is called:

1. Stock

2. Scion

3. Explant

4. Embryoid

Q. The part of the plant taken for tissue culture is known as what?

Q. Write the meaning of following terms.
(a) Explant
(b) Totipotency
(c) Somaclones

Q. What is an explant culture?

Q. Which of the following should be used as an explant to generate a disease free plant?

1. Anther
2. Ovary cell
3. Shoot tip
4. Young embryo

Q. Vidya got a plant that was affected by a viral disease. Her objective is to raise a disease-free plant from this infected plant through tissue culture. Which part of the plant should be selected as the explant?

Q. Explant is

1. Plant part used to regenerate whole plants on nutrient medium.
2. Plant developed in the external environment.
3. Excised parts of plants used for vegetative propagation.
4. Plants developed from polyembryonic seeds.

Q.

Pieces of plant used in tissue culture are called

1. Explants

2. Somaclone

3. Inoculants

4. Clone

Q. Piece of plant tissue used in tissue culture is

1. Clone
2. Explant
3. Somaclone
4. Inoculant

Q. Very short answer type :
For tissue culture or micropropagation an explant is selected from the tip of the shoot.

Q. The best plant explants to raise virus free plant is?

1. Embryo
2. Vessels
3. Meristem
4. None

Q.

what is meant by grafts?

Q. An explant is

1. Dead plant.
2. Part of the plant.
3. Part of the plant used in tissue culture.
4. Part of the plant that expresses a specific gene.

Q. Most plant tissue cultures are initiated from

1. Explants
2. Callus
3. Plantlets
4. Protoplasts
5. Anthers

Q. State the reason for the selection of this part as the explant.

Q. The part of plant used for culturing is called ___________.

1. Scion
2. Explant
3. Stock
4. Callus

Q. Plant part used to regenerate whole plants on nutrient medium is called.

1. micropropagule
2. somaclones
3. explant
4. callus

Q.

Pieces of plant used in tissue culture are called

1. explants

2. somaclone

3. inoculants

4. clone