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Most recent common ancestor of Aeshnidae and Cordulidae
Common ancestor of all lineage of dragonflies pictures
Most recent common ancestor of Macromildae and Cordulidae
Usually reduces genetic variation within a population
Can affect populations of any size
Happens by movement of individuals or gametes between populations
Usually increases genetic variation by introducing new alleles
Affects small populations more strongly
Happens by chance (random events like natural disasters or small population size)
Genetic Drift
Gene Flow
How does independent assortment affect genetic variation?
What is the role of crossing-over in meiosis?
Why is diversity important in sexually reproducing populations?