If a boy receives type A allele from his mother and type B allele from his father, he will have Blood.

A mother who is blood type O can only pass an O allele to her son or daughter. A father who is blood type AB could pass either an A or a B allele to his son or daughter. This couple could have children of either blood type A (O from mother and A from father) or blood type B (O from mother and B from father).

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B allele from his father

Explanation: He will get B allele from his father because males are dominant and females are resilient

most community's take hundreds of years to become stable

lysosome is this part of the cell is surrounded by a very thick outer membrane to protect the rest of the cell from its strong enzymes.