Question
In maize, hybrid vigour is exploited by
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bombarding the seeds with DNA
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crossing of two inbred parental lines
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harvesting seeds from the most productive plants
-
inducing matations
Solution
B.
crossing of two inbred parental lines
Hybrid varieties were first developed in maize, which is a cross-pollinated crop. In such crops, the parents of hybrid varieties are, ordinarily, inbred lines. A inbred line is a nearly homozygous line produced by continuous inbreeding in a cross-pollinated crop and is maintained by strict inbreeding. In maize, hybrid vigour or heterosis is exploited by crossing of two inbred parental lines.
