Uploaded January 2016 | Updated September 2026, 2 weeks ago

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10.2 Inheritance: Morgan's Discovery of New Ratios

Table of Contents:

00:00 - Morgan’s discovery of non-Mendelian ratios in Drosophila
04:03 - Predicting Ratios in Dihybrid Crosses
04:05 - Morgan’s discovery of non-Mendelian ratios in Drosophila

Understanding that:

- Gene loci are said to be linked if on the same chromosome.
- Unlinked genes segregate independently as a result of meiosis.
- Variation can be discrete or continuous.
- The phenotypes of polygenic characteristics tend to show continuous variation
- Chi-squared tests are used to determine whether the difference between an observed and expected frequency distribution is statistically significant