Plant Tissue Culture Multiple Choice Questions and Answers for Practice

16. Callus is

1. Tissue that forms embryo
2. An insoluble carbohydrates
3. Tissue that grows to form embryoid
4. Un organized actively dividing mass of cells maintained in cultured

17. Cell fusion method includes the preparation of large number of

1. plant cells stripped of their cell wall
2. single plant cell stripped of their cell wall
3. plant cells with cell wall
4. cells from different species

18. Cellular totipotency is the property of

1. Plants
2. Animals
3. Bacteria
4. all of these

19. Cybrids are produced by

1. Fusion of two different nuclei from two different species
2. Fusion of two same nuclei from same species
3. Nucleus of one species but cytoplasm from both the parent species
4. None of the above

20. DMSO (dimethyl sulfoxide) is used as

1. Gelling agent
2. Alkylating agent
3. Chelating agent
4. Cryoprotectant

21. Growth hormone producing apical dominance is

1. Auxin
2. Gibberellin
3. Ethylene
4. Cytokinin

22. Hormone pair required for a callus to differentiate are

1. Auxin and cytokinin
2. Auxin and ethylene
3. Auxin and absiccic acid
4. Cytokinins and gibberllin

23. In a callus culture

1. increasing level of cytokinin to a callus induces shoot formation and increasing level of auxin promote root formation
2. increasing level of auxin to a callus induces shoot formation and increasing level of cytokinin promote root formation
3. auxins and cytokinins are not required
4. only auxin is required for root and shoot formation

24. In a cell, protoplast consists of the following EXCEPT?

1. Cell wall
2. Cell membrane
3. Nucleus
4. Cytoplasm

25. In growth room, humidifier serves as?

1. Contaminant reducer
2. Humidity reducer
3. Medium drying preventer
4. Temperature controller

26. In plant tissue culture, what is the term ORGANOGENESIS means?

1. Formation of callus culture
2. Formation of root & shoot from callus culture
3. Genesis of organ
4. None of the above

27. Media room of a plant tissue culture lab should consist of the following EXCEPT?

1. pH meter
2. Autoclave machine
3. Analytical balance
4. Biosafety cabinet

28. Organogenesis is

1. formation of callus tissue
2. formation of root and shoots on callus tissue
3. Both a and b
4. genesis of organs

29. Part of plant used for culturing is called

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

30. Plant tissue culture technique is a redefined method of

1. Hybridization
2. Vegetative Propagation
3. Asexual Reproduction
4. Selection