Given: A zygote that inherits both Dominant alleles for a Dominant genetic disorder, such as Dwarfism will not survive.
We want to know what could happen if this were not true and purebred people with dominant genetic disorders had children.
Answer: If purebred people with dominant disorder have children, there will be a 100% chance of passing the genes to the children if both parents had the Dominant genetic disorder.
If one parent has the Dominant genetic disorder, there will be 50% chance of the altered gene to the children and 50% chance that the child will not inherit the altered gene.
If both parents are recessive but carriers of the Dominant genetic disorder, there is 25% chance with each pregnancy of having a child affected by the disorder. The chance with each pregnancy of having an unaffected child who is a carrier of the disorder is 50 percent, and the chance that a child will not have the disorder and will not be a carrier is 25 percent.
If only one parent is a carrier of the altered gene and the other parent does not carry the variant, none of their children will develop the condition, and the chance with each pregnancy of having an unaffected child who is a carrier is 50 percent.