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What was the observation made by Morgan based on his dihybrid crosses?

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in Biology – Class 12 by (271k points)
What was the observation made by Morgan based on his dihybrid crosses?

(a) Genes segregate independently

(b) Genes do not segregate independently

(c) Genes disappear

(d) New genes appear

I have been asked this question during an internship interview.

I want to ask this question from Inheritance Principles topic in portion Principles of Inheritance and Variation of Biology – Class 12

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Right choice is (b) Genes do not segregate independently

To elaborate: If the segregation law was to hold, the expected phenotypic ratio of F2 was 9:3:3:1. However, Morgan saw a deviation from this ratio. This implied that the genes do not segregate independently.

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