Uses of Tissue Culture

Q.

Which part of the plant is best suited for .making virus-free plants and why?

Q. Virus free plants can be formed by

1. meristem culture
2. callus culture
3. somatic cell culture
4. protoplast fusion

Q.

What is the major advantage of producing plants by micropropagation?

Q.

What are the different types of neurons? Explain.

Q. What are the benefits of micropropagation?

1. Multiplication of disease free plants
2. Multiplication of sexually sterile hybrids
3. All of the above
4. Rapid multiplication of superior clones

Q.

Define neuron.

Q.

Which Is the longest cell In the human body?

Q. Which of the following statements are correct with respect to a bioreactor?
i. It can process large volumes of culture
ii. It provides optimum temperature and pH
iii. It is a compact thermal cycler

1. i and ii
2. i, ii and iii
3. i and iii
4. ii and iii

Q. The function of the part labelled X in the given diagram is to

1. evenly mix the culture broth and sterilise it
2. evenly mix the culture broth and provide uniform aeration throughout the culture
3. evenly mix the culture broth and maintain uniform pH
4. All of these

Q.

What Is The Ability Of A Living Somatic Plant Cell To Develop Into A Complete Plant Called?

Q. Bioreactors are equipped to maintain which of the following conditions in the culture medium?

1. Optimum temperature
2. Optimum pH
3. Sterile environment
4. All of the above

Q.

What is the major advantage of producing plants by micropropagation?

Q.

Which part of the plant is best suited for making virus-free plants and why?

Q. Regarding assertion and reason, choose the correct option
Assertion [A]: Meristem culture is the best method to get virus free plants.
Reason [R]: Meristems divide rapidly and do not allow virus multiplication.

1. Both A and R are true and R explains A
2. Both A and R are true but R does not explain A
3. A is true and R is false
4. Both A and R are false

Q. Micropropagation technique has been commercially and successfully used in multiplication of

1. Wheat, cotton and bananas
2. Wheat and sugarcane
3. Sugarcane, barley and sugar beet
4. Orchid, bananas and potatoes

Q. (a) Write the two limitations of traditional breeding technique that led to the promotion of micropropagation.
(b) Mention two advantages of micropropagation.
(c) Give two examples where it is commercially adopted.

Q. In order to obtain disease –free plants through tissue culture techniques, the best method is

1. embryo rescue
2. 
   anther culture
   
3. protoplast culture
4. meristem culture

Q. What is micropropagation?

1. Germination of seed with cotyledons above the soil.
2. To manufacture hormones.
3. A technique to obtain new plants by cultivating the cells or tissues in culture medium.
4. The mature stage of endosperm.

Q. Explant required for virus free culture is

1. root
2. shoot tip
3. leaf and root
4. leaf

Q. Micropropagation is a technique

1. for production of somaclonal plants
2. for production of true plants
3. for production of of haploid plant
4. for production of somatic hybrids

Q. What is micropropagation?

Q. Tissue culture technique can produce the indefinite number of new plants from a small parental tissue. The economic importance of the technique is in raising

1. Genetically uniform population of an elite species
2. Development of new species
3. Variants through picking up somaclonal variations
4. Homozygous diploid plants

Q. Micropropagation means

1. Preparation of tissue in the laboratory
2. Genetic engineering
3. Growth of plantlets in nutrient media in the laboratory
4. Preparation of new tissue by DNA recombination

Q. What is Micropropagation? Write the methods involved with suitable examples.

Q. Chimera is produced as a result of

1. Reverse mutations
2. Lethal mutations
3. Pleiotropic mutations
4. Somatic mutations

Q. The technique of producing large number of genetically similar plants within short time by tissue culture is called as _____________.

1. Organogenesis
2. Somatic hybridization
3. Micro-propagation
4. Protoplast culture

Q. A technique of micropropagation is:

1. Embryo rescue
2. Somatic hybridization
3. Somatic embryogenesis
4. Protoplast fusion

Q. Regarding assertion and reason, choose the correct option
Assertion [A]: Meristem culture is the best method to get virus free plants.
Reason [R]: Meristems divide rapidly and do not allow virus multiplication.

1. Both A and R are true and R explains A
2. Both A and R are true but R does not explain A
3. A is true and R is false
4. Both A and R are false

Q. A clone is a group of individuals obtained through

1. Hybridisation
2. Cross-pollination
3. Self-pollination
4. Micropropagation

Q. (a) Write the two limitations of traditional breeding techniques that led to promotion of micropropagation.

(b) Mention two advantages of micropropagation.

(c) Give two examples where it is commercially adopted. [3]