The rare changes in DNA are called mutation ...
BUT genetic diversity results from the shuffling of paired genes in normal sexual reproduction.
Sex was "invented" to foil parasites, even before two different sexes were developed.
Mutagenesis
A bottleneck can lead to a significant reduction in the genetic diversity of a population, causing certain alleles to be lost and others to become more common. This can increase the frequency of rare alleles and result in genetic drift, potentially leading to an increase in genetic diseases or reduced fitness in the population.
Copper
It can be in some cases but its very rare.
Rare Genetic Diseases In Children: An Internet Resource Gateway. http://mcrcr2.med.nyu.edu/murphp01/homenew.htm.
This can occur through reproduction. If you have two people with the recessive gene for a rare genetic disorder, they have a 25% chance of having offspring with this disorder. The probability increases as the genetic pool increases.
Once thought to be a rare disorder, TS is one of the most common genetic conditions
It's a rare neurological disorder.
what does this mean? rare A bacteria
Phenylketoneuria is the name of a rare genetic disorder, not a chemical compound.
It is called moyamoya and it an extremely rare genetic condition.
Von Hippel-Lindau disease (VHL) is an extremely rare genetic condition. It is said to affect 1 in 35,000 people.