In humans, brown eye color dominates over blue. The heterozygous brown-eyed parents have a blue-eyed daughter.

In humans, brown eye color dominates over blue. The heterozygous brown-eyed parents have a blue-eyed daughter. What eye color can grandchildren have if a daughter marries a heterozygous brown-eyed man? And if he is homozygous brown-eyed?

In the first case, 1/2 of the grandchildren will have brown eyes, and 1/2 will have blue eyes. In the second, all grandchildren will be brown-eyed.

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.