During the 1860s, Gregor Mendel laid the foundation for people's understanding of patterns of inheritance. Mendel's most important finding was that
A) genes occur singly and not in pairs.
B) genes do not have fixed positions on chromosomes.
C) dominant traits are expressed only if both copies of a gene are recessive.
D) traits are transmitted independently of each other.

Question

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Mendel's most important finding was the principle of independent assortment, which states that the alleles for different traits are transmitted to offspring independently of one another. This principle is one of the key concepts of Mendelian genetics.

During the 1860s, Gregor Mendel Laid the Foundation for People's