After reading this article you will learn about:- 1. Detection of Linkage Using F2 Data 2. Detection of Linkage Using Backcross (Testcross) Data. Detection of Linkage Using F2 Data: It may be recalled that when 2 genes are located on 2 different chromosomes, they assort independently and give rise to a typical 9:3:3:1 ratio in the F2 generation assuming complete [...]
In this article we will discuss about:- 1. Introduction to Linkage of Gene 2. Linkage Groups 3. Complete 4. Incomplete. Introduction to Linkage of Gene: Morgan (1910) noted similar behaviour in Drosophila melanogaster (Fig. 8.2) and recorded that coupling and repulsion are two aspects of a single phenomenon called linkage. Morgan was the first to relate linkage to the segregation [...]
The below mentioned article provides a study note on the Linkage of Genes. When Mendel's work was rediscovered, thousands of experiments were conducted by the early biologists on the diverse groups of plants and animals. The results obtained in those cases were quite contrary to the principles of independent assortment, but none of the interpretations was good enough to justify [...]