This is true because if they didn't they wouldn't have the same biological mother.
A would have it.
A is hetrozygous person. Since it is dominant, you only need 1 "H" to recieve the gene. Since B has two "h", it would not contain the disease.
Trophic cascades are powerful indirect interactions that can control entire ecosystems
According to the blood type chart, if a child has type A blood and one parent in Type O, the possible genotypes for the other parent are type A or type B. I hope my answer has come to your help. God bless and have a nice day ahead!
