Q6 of 77 Page 65

Fill in the blanks


I: Cellulases catalyse is the enzyme that breaks down the plant cell wall as it is majorly made up of cellulose.


After digestion or breakdown of cell wall of tomato and potato, the fusion of protoplast of potato and tomato cell takes place.


II: Somatic hybridisation is the name of the process. The process is named so because in this the hybrids are formed from the cells other than the reproductive cells.


***note: somatic cells are cell of organism other than the reproductive cell.***


III: The plant formed by the fusion of tomato and potato cell is generally termed as Pomato/Topato.


The name of the plant is formed by joining the tomato and potato.


***note: unfortunately this hybrid plant does not have all the desired character to be used commercially.


IV: Somatic hybrid is the term used to denote such plants.


These plants are formed by the fusion of somatic cells of two different plants and hence they are named so.


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In the area of plant breeding, it is important not only to preserve the seeds of the variety being cultivated, but also to preserve all its wild relatives. Explain with a suitable example.

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Name a man-made cereal? Trace how it was developed and where is it used?

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A few statements are given below followed by a set of terms in a box. Pick the correct term and write it against the appropriate statement

a. Mating of closely related individuals within the same breed


b. Mating of animals of same breed but having no common ancestors on either side for 4-6 generations


c. Mating of animals of two different species


d. Breeding of animals belonging to different breeds


(i) Cross breeding, (ii) Inter-specific hybridization, (iii) Out breeding, (iv) Out crossing, (v) Inbreeding


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