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When two unrelated individuals or lines are crossed, the perfomance of `"F"_(1)` hybrid is often superior to both its parents. This phenomenon is call

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When two unrelated individuals or lines are crossed, the perfomance of `"F"_(1)` hybrid is often superior to both its parents. This phenomenon is called:
A. transformation
B. splicing
C. metamorphosis
D. heterosis
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Correct Answer - D
The supeiority of hybrids over either of the parents (doinaant or recessive) is called hybrid vigour (G shull) .Heterosis is equivalent of hybrids vigour.
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