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Explain with an Example, How Genes Control the Characteristics (Or Traits). - Science

Explain with an example, how genes control the characteristics (or traits).

 
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Solution

A gene is the section of DNA on a chromosome that codes the formation of a protein controlling a specific characteristic of the organism.
Suppose, a plant progeny possesses gene for the characteristic called 'tallness'. The gene for tallness will give instructions to the plant cells to generate many plant-growth hormones due to which the plant will grow tall. On the other hand, if the plant has the gene for shortness, less plant-growth hormones will be produced, due to which the plant will not grow much and remain a dwarf plant.

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Lakhmir Singh Class 10 Biology (Science)
Chapter 4 Heredity and Evolution
Q 21 | Page 192
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