|14-16 Length of ears of corn 5-7 cm 8-10 cm 11-13 |17-19 cm cm |cm |126 85 Number of 20 F2 offspring 83 21 What are the ratios of F2 offspring that express the extreme short or long-eared phenotype? Based on the ratios above, calculate the number of polygenes likely to be involved in ear length for corn. How many additive alleles are needed for to get a 18 cm ear of corn? How many to get a 12 cm ear of corn?

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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.