Question

how a gene regulate the quality attributed to a plant height ​

Answer 1

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Answer 2

Gene help by synthesizing the protein which they code for. That protein will help in regulating the appearance or inhibition of a particular trait.

Explanation:

1. In case of plant height, the character of height is controlled by the genes T and t .
2. When T is present in homozygous condition or heterozygous condition, it produces the protein that can help in increasing the height of plant , in sufficient quantity.
3. When t is present in homozygous state, it is unable to produce protein responsible for height in sufficient amount and result in a dwarf plant.

This is how , genes regulate the plant height.