The relationship between genetics and genetics.. Causes of similarities and differences in qualities among individuals who are related to kinship. Genetic variability and environmental heterogeneity

What is the relationship between genetics and genetic traits?
Genetics studies the causes of similarities and differences in qualities among individuals who are related to kin.
2. The concept of heterogeneity refers to those differences arising from genetic factors and differences arising from environmental factors.
3. The heterogeneity can be divided into two types: genetic variation and environmental heterogeneity.