1. Chapter 10.3 Gene Linkage and Polyploidy
March 4, 2015

2. Linked Genes
Genes located close to each other on the same chromosome

3. Gene Linkage Linked genes travel together
Exception to Mendel’s law of independent assortment

4. Examples of Linked Genes

5. Chromosome Maps Map shows the relative position of each gene.
Genes that are far apart are more likely to crossover.

6. Polyploidy
Polyploidy is the occurrence of one or more extra sets of all chromosomes in an organism.
Approximately 30% of flowers are polyploidy
Strawberries are octoploidy (8n)

7. Polyploidy
Horticultural important plants are forced to polyploidy to increase the size and flavor of flowers and fruits and overall vigor of the plants.
Polyploidy is uncommon in animals.