The graph below illustrates frequency distributions for a trait influenced by a

Question

The graph below illustrates frequency distributions for a trait influenced by a single quantitative trait locus (QTL). The distribution drawn in orange represents the entire population. ldentify the true statements regarding the graph below Frequency distributions of a trait influenced by a single QTL The distribution that represents the BB homozygous individuals has a greater mean value of the trait than the total population Blb The total population and the population of heterozygotes have the blb same mean value of the trait B/B The distributions that represent the two homozygous populations have the same standard deviation The distribution of homozygous dominant individuals has a greater sample size than the distribution of the total population Low Intermediate High Trait value

Explanation / Answer

The distributions that represent the two homozygous populations have the same standard deviation.

It is observed that the homozygous population – B/B and b/b show the same standard deviation and displays the same frequency distribution. On making a comparison it shows standard frequency in sync with the population.

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