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Question

Pure line selection results in retention of desired characters__________

A
For one generation
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B
For two generations
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C
For several generations
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D
None of these
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Solution

The correct option is C For several generations
  • Pure-line selection generally involves three more or less distinct steps:
(1) numerous superior appearing plants are selected from a genetically variable population;
(2) progenies of the individual plant selections are grown and evaluated by simple observation, frequently over a period of several years; and
(3) when selection can no longer be made on the basis of observation alone, extensive trials are undertaken, involving careful measurements to determine whether the remaining selections are superior in yielding ability and other aspects of performance. Pure-line selection involves selecting and breeding progeny from superior organisms for a number of generations until a pure line of organisms with only the desired characteristics has been obtained.

Therefore, the correct answer is option C.

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