Which of the following is an example of a non-mendelian pattern of inheritance?

Question:

Which of the following is an example of a non-Mendelian pattern of inheritance?

A. All traits are inherited through patterns found by Mendel.

B. When individuals with the genotype BB cross, all of the offspring have brown fur.

C. When pea plants that are heterozygous for a certain trait cross, some of the offspring express both distinct versions of the trait.

D. Human feet come in a wide range of sizes.

Human feet come in a wide range of sizes is an example of a non-Mendelian pattern of inheritance

Explanation:

The Mendelian pattern of inheritance says single gene loci governs the physical feature of an organism or a trait. In two alternate form single genes are present i.e. recessive and dominant allele. This shows a particular trait like small or tall in pea plant. The variation of size of human feet shows the polygenic trait (depicting the variation) that is known to be controlled by more than two genes, so the human feet size variation is the non mendelian pattern of inheritance.  

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