State whether the following statements are true or false. The increased superiority of hybrids over the parents is called heterosis.
A
True
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B
False
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Solution
The correct option is A True The superiority of the progeny over the parents is called Heterosis or hybrid vigour. Hybrids are superior in such characteristics such as size, growth rate, fertility, and yield over those of its parents. Plant and animal breeders exploit heterosis by mating two different purebred lines that have certain desirable traits.