Fine spines (s), smooth fruit (tu), and uniform fruit color (u) are three recessive traits in cucumbers. A cucumber plant heterozygous for all three traits is used in a test cross, and the following progeny are produced from this test cross. Type Number SU TU su Tu Su Tu su tu SU tu s U tu SU TU Sutu TOTAL 2 70 21 4 82 21 13 17 230 Identify the order of the genes on the chromosome:

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A:

Q: Fine spines (s), smooth fruit (tu), and uniform fruit color (u) are three recessive traits in…

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Q: Calculate the coefficient of coincidence and interference among thegenes.

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Q: Phenotypes PAO PAo PaO Pao PAO pAo pao pao x no zygo Number 91 427 6 106 120 7 323 62

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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.