What crossing is called analyzing?

Analytical crosses are used to establish the genotype of individuals that do not differ in phenotype. In this case, the individual whose genotype must be established is crossed with the individual homozygous for the recessive gene (aa).

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.