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.