A student recorded the height of each student in the school. She then made a bar graph of her results. She observed that the results form a bell-shaped curve. The student could use her graph as evidence to support which argument?
Height is affected by multiple pairs of genes on different chromosomes.
The alleles for tall height and short height are codominant.
The allele for being tall is dominant to the allele for shorter heights.
There are three alleles for height that demonstrate incomplete dominance.
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Height is affected by multiple pairs of genes on different chromosomes.

Explanation:

The results of the graph made by the student shown above, show that in relation to the height of people, there is a very large variation of phenotypes. This variation is due to environmental action in a variation of genotypes, which is very common in characteristics resulting from polygenic inheritance.

In this way, we can guarantee that according to the graph, height is affected by multiple pairs of genes on different chromosomes, which interact with each other, determining very variable characteristics.