Question

Inherent nature to demonstrate hybrid vigour is mostly due to

• A. transfer of identical form of a particular trait from each parent
• B. transfer of different forms of a particular trait from each parent
• C. transfer of only one type of trait from a single parent
• D. exogenous spraying of phytohormones

Answer 1

The correct option is B transfer of different forms of a particular trait from each parent

Hybrid vigour causes cross-bred offspring to have growth or other characteristics that are more advantageous than either of their parents. Hybrid plants are produced by the cross-fertilisation of two parents differing from each other. The increase in the trait of a hybrid strength/hybrid vigour is due to the fusion of different forms of a particular trait from each parent.
Transfer of identical forms of a particular trait doesn’t influence the hybrid strength of a plant.
There are various plant hormones that a plant produces to regulate growth and development, but exogenous spraying of plant hormones will not influence a plant to produce offspring showing inherent hybrid.