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Principles of Plant Genetics and Breeding

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180 CHAPTER 10<br />

3 Give three specific reasons why wide crosses may be undertaken.<br />

4 Explain the phenomenon <strong>of</strong> linkage drag.<br />

5 Give examples <strong>of</strong> major crops that arose by wide crosses.<br />

Part C<br />

Please write a brief essay on each <strong>of</strong> the following topics:<br />

1 Discuss the basic steps in artificial hybridization.<br />

2 Discuss the challenges <strong>of</strong> wide crosses.<br />

3 Discuss the techniques used for overcoming the challenges to wide crosses.<br />

4 Discuss the technique <strong>of</strong> bridge crossing.<br />

5 Discuss the genetic issues in hybridization.

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