Genetic Recombination

Genetic recombination: The breaking and reforming of DNA strands to form new molecules of DNA encoding a new set of genetic information

Chromosomal Crossover

  • Occur during mitosis or meiosis during prophase
  • Chromosomes overlap and exchange parts

  • Changes what traits are next to each other
  • allow genetics to determine gene placement by looking at how often traits remain together

Gene Conversion

  • DNA is broken and other DNA can get copied in the repair process instead of the original DNA.

Mutations: DNA changes due to radiation, mitosis, errors, viruses, or many other causes.

Effects on populations

  • provide genetic diversity
  • strengthen a populations resistance to diseases
  • provide new adaptations for success.