How does random fertilization add to the genetic variation?

The answer is exchange of genetic material between homologous chromosomes. Homologous chromosomes are comprised of chromosome sets of around a similar length, centromere position, and recoloring design, for qualities with the same comparing loci.

In genetics, random fertilization is a situation where fertilization occurs randomly with many possible outcomes. The fact that random fertilization has a large number of possible outcomes means that the resulting product can have a wide range of characteristics. This gives a rise to a great variation in the genetics of the product.

Wetlands form where water and land meet. a lake with a wetland fringe can fill in with decayed plant and animal material to become a wet meadow. a pond can fill in to become a bog or fen. sediment can fill in a river marsh to become a swamp.flooding of coastal lowlands from rising sea levels has created broad coastal marshes that are protected from wave action by barrier islands or reefs. coastal wetlands also form when rivers deposit sediment as they reach the ocean. plants then take root and hold the soil firm against the forces of tides and waves.