In tomatoes, spherical fruit shape is dominant to oblate, and tall is dominant to dwarf. o = oblate, O = spherical d = dwarf, D = tall A true-breeding oblate, tall strain is crossed to a true-breeding spherical, dwarf strain. The F1 generation is testcrossed to a true-breeding oblate, dwarf strain. 1,000 testcross progeny are produced as follows: 420 spherical, dwarf 100 spherical, tall 110 oblate, dwarf 370 oblate, tall What is the genetic map distance between the two genes?

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A: Please follow step 2 for detailed explanation.

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Inheritance and Mendelian Genetics

Inheritance means the passing of traits to offspring from parents. These traits could be passed either through asexual reproduction or sexual reproduction. The offspring receives the genetic material from the parents. Mendelian inheritance is a certain biological inheritance that follows the rules and principles laid down by Gregor Mendel in 1865. The initial hypothesis was considered wrong, but other inheritance theories modified the concept of inheritance and thus genetics.