Using height (tallness / dwarfness) of a plant as an example, show that genes control the characteristics or traits in an organism. OR In a cross…

Using height (tallness / dwarfness) of a plant as an example, show that genes control the characteristics or traits in an organism. OR In a cross between red coloured and white coloured flowers, when plants with red coloured flowers of F1 generation were self pollinated, plants of F2 generation were obtained in which $\displaystyle 75$% of plants were with red flowers and $\displaystyle 25$% plants were with white flowers. Explain the inheritance of traits in the above cross with the help of a flow chart only along with the ratio of plants obtained.