Height is :-[UP CPMT 2005]a)somatogenic variationb)discontinuous varia...
Continuous variation
In continuous variation there is a complete range of measurements from one extreme to the other. Height is an example of continuous variation - individuals can have a complete range of heights, for example, 1.6, 1.61, 1.62,
1.625 etc metres high.
Other examples of continuous variation include:
• Weight; Hand span; Shoe size; Milk yield in cows Continuous variation is the combined effect of many genes (known as polygenic inheritance) and is often significantly affected by environmental influences. Milk yield in cows, for example, is determined not only by their
genetic make-up but is also significantly affected by environmental factors such as pasture quality and diet, weather, and the comfort of their
surroundings. When plotted as a histogram, these data show a typical bell-shaped normal distribution curve, with the mean (= average), mode (= biggest value) and median (= central value) all being the same.