Genetic diversity refers to the variation in the genetic makeup of a population, which can be measured by the number of alleles at a given locus or the proportion of individuals with different genotypes.

Inbreeding depression is a decrease in the fitness of offspring that results from mating between closely related individuals. It is more likely to occur in populations with low genetic diversity.

A genetic bottleneck is a reduction in the size of a population that can lead to a loss of genetic diversity. This can occur due to natural disasters, hunting, or other factors.

Natural selection is a process that leads to the differential survival and reproduction of individuals with certain traits. It is not a cause of genetic drift, which is a random process that can lead to changes in allele frequencies.

Gene flow is the movement of alleles between populations. It can occur through migration, mating, or other mechanisms.

Inbreeding leads to an increase in homozygosity, which can increase the risk of genetic disorders and reduce fitness. It does not lead to an increase in genetic diversity.

The genotype of an individual is the genetic makeup of that individual, consisting of the alleles at all of their genes.

Epigenetic modifications are changes in gene expression that do not involve changes in the DNA sequence. They are not considered to be a type of genetic variation.

Genomics is the study of genetic variation and its relationship to health and disease.

Cancer is not a genetic disorder, although it can be caused by genetic mutations. Genetic disorders are caused by changes in the DNA sequence that are inherited from parents.

Predictive testing is a genetic test that can identify individuals who are at risk for a particular genetic disorder, even if they do not have any symptoms.

Pharmacogenomics is the study of how genetic variation affects an individual's response to drugs. It is not a type of genetic therapy.

Pharmacogenomics is the use of genetic information to develop new drugs and treatments that are tailored to an individual's genetic makeup.

Genetic diversity in human populations is beneficial because it increases resistance to disease and adaptability to environmental changes. It does not increase the risk of genetic disorders.

Genomics medicine is the study of the relationship between genes and health. It uses genetic information to diagnose, treat, and prevent disease.