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Plant Cell Technology: Somaclonal Variation

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Plant Cell Technology: Somaclonal Variation

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Questions and Answers

What was the purpose of the experiment described in the text?

To compare the growth of rice cultivars A and B

To study the effects of gamma irradiation on rice seeds

To develop drought-resistant rice cultivars (correct)

To investigate the sources of genetic variability in rice

Which method of cell selection did the researchers use in the experiment?

Gamma irradiation

Pre-existing cellular differences

Tissue culture-induced variation

Water stress selection (correct)

What was the initial treatment applied to the 100 paddy seeds (F0) in the experiment?

Tissue culture

Drought stress

Gamma irradiation at 200Gy (correct)

No treatment

What happened to the seeds that were grown under normal water conditions?

No seeds survived Signup and view all the answers

What was the purpose of growing the adult plants (F1) under water stress conditions?

To identify drought-resistant plants Signup and view all the answers

What was the purpose of continuing to grow the plants under water stress conditions until the F3 and F4 generations?

To test the stability of the drought resistance trait Signup and view all the answers

What was the source of genetic variability used in the experiment?

Pre-existing cellular differences Signup and view all the answers

What was the initial population size of the experiment?

100 Signup and view all the answers

What happened to the plants that were grown under water stress conditions?

Some plants survived, some died Signup and view all the answers

What was the ultimate goal of the experiment?

To develop new rice cultivars with improved drought resistance Signup and view all the answers