I don't really know the chances of this happening but I know that it is possible and there are many people with a mother that is older then there father.
= Older father, younger mother =
If your older brother impregnated his (and your) mother.
The grandmother that is younger than his mother would be his father's mother.
Mother, father, and an older brother.
I think he should be goku older brother i think his mother would be gine and father bardock
You can compare the DNA between yourself and your older sibling. Siblings have APPROXIMATELY (as in, on average) 50% the same genes, because each gene has a random chance of being inherited from the mother or father. If you are related (brother, half-brother, cousin, etc) then the DNA similarities will be obvious. If you are not, well, that also will be obvious.
Adam has a father, mother and an older brother (i think)
His father is Zeus. His mother is Leto. His older twin sister is Artemis.
110 right?
There is an increase in the chance of for instance, Downs syndrome as the mother gets older.
Her father was Ptolemy 12 but I'm not too sure about the mother Her mother was Cleopatra the 5th (the more famous Cleopatra being the 7th, as she had an older sister who was Cleopatra the 6th!)
Yes, Martin was the father of sonia's baby. Martin got custody of the child when she was older an his mother,Pauline,made it very difficult for Sonia to see her as she thought she was incapable of being a mother.