Drugi mogući odgovor:
Most recent common ancestor of Aeshnidae and Cordulidae
Common ancestor of all lineage of dragonflies pictures
Most recent common ancestor of Macromildae and Cordulidae
Happens by movement of individuals or gametes between populations
Affects small populations more strongly
Can affect populations of any size
Usually reduces genetic variation within a population
Happens by chance (random events like natural disasters or small population size)
Usually increases genetic variation by introducing new alleles
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?