What is the method to study the incidence and inheritance mode of genetic diseases?

The investigation of human genetic diseases can be divided into two situations: one is to investigate the incidence of a certain genetic disease; The second is to investigate this genetic model.

To investigate and count the incidence of a genetic disease in the population, it is necessary to randomly sample the population and then calculate it by statistical methods. Incidence rate of a genetic disease = (number of patients with a genetic disease/number of people surveyed with a genetic disease) × 100%.

Investigating the genetic mode of genetic diseases should be carried out in the typical patient's family.

In the investigation, it is best to choose monogenic genetic diseases with high incidence in the population, such as red-green color blindness, albinism, high myopia (above 600 degrees) and so on.

Calculation and analysis of the contents/results of the survey on matters needing attention of project respondents

The incidence of genetic diseases is randomly sampled in the general population, taking into account factors such as age and gender. The population is enough, and the number of patients is × 100%.

Analysis of the normal situation and prevalence rate of families with hereditary pattern patients: recessive genes and their chromosome types