The kids (and grandkids if a child predeceased) inherit everything equally. It's per stirpes, meaning if one child died before the parent but left kids, those grandkids split their parent's share.
The spouse gets the entire estate (real and personal property) after debts are paid. This is full ownership in fee simple.
The spouse and the child split the estate 50/50. The child gets half; the spouse gets the other half.
The spouse and the child split the estate 50/50. The child gets half; the spouse gets the other half.
If no spouse or kids, the estate goes to the parents equally (if both alive) or to the surviving parent.
If no parents either, then to brothers and sisters equally. If a sibling predeceased, their kids (nieces/nephews) take their share per stirpes. Representation is allowed here (unlike more distant relatives).
If none of the above, it goes to grandparents, aunts/uncles, then more distant kin using civil law degree-counting rules. No representation among collaterals except for siblings' descendants.
The estate escheats (goes) to the State of Mississippi—rare, but it happens.