linked genes


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linked genes

Etymology: ME, linke + Gk, genein, to produce
genes that are located so close together on the same chromosome that they tend to be transmitted as a linkage group.
References in periodicals archive ?
Once students understand coupling and repulsion crosses, they can predict the outcomes of the F2 generations in the coupling and repulsion crosses for linked genes, if no crossing over has occurred.
Using Table 1, students determine the approximate map distance between their two linked genes.
Thus the more F2 offspring in the coupling or repulsion cross that are derived from recombination (in the coupling cross, offspring with a single recessive trait; in the repulsion cross, offspring with both recessive traits), the further apart the linked genes are.
This method of calculating map distance between linked genes using F2 data is an effective method of generating mapping data for students to use in lab.
This method calculates map distances between two linked genes using data generated from the F2 generation of an F1 sibmate cross.