What criterion for a species does a person have 46 chromosomes?

The genetic (cytomorphological) criterion is based on the difference in species by karyotypes, i.e., by the number, shape and size of chromosomes.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.