In theory or reality, can a biological parent (any species) ever end up with no DNA in common w/their child?

Question

Let me clarify: I'm wanting to know if there is any system of sexual reproduction in any species in which one of the contributing parents ends up not having any DNA in common with the resulting offspring, or if such a system can even be theoretically (but realistically) modelled.

Answer 1

No.  The offspring get their DNA from the parents.  During the process of meiosis (sexual reproduction) one parent cell with 23 pair (46 individual) of chromosomes results in 4 daughter cells, each with 23 single chromosomes.  When the egg is fertilized by the sperm, the cell that is formed has 23 pair of chromosomes, 1/2 from mom and 1/2 from dad.  It is not possible to have the necessary 23 pair without contributions from both parents.

Answer 2

My  friend this is not possible.....

if it would be then der would nt be something called dna .......

dna itself shows your identity... and that comes frm your parents!

Answer 3

You aren't a parent if you do not contribute genes to the offspring.  That is how it is defined.

Answer 4

Only if you're Jesus.

Answer 5

No.  The only way that would happen would be a mistake.  Sexual reproduction requires sperm and egg.  The only way you could get a biological parent without any DNA would be if the egg extruded it's nucleus and two sperm entered.  There are a lot of mechanisms in place to assure this doesn't happen.  

Answer 6

By definition, 'sexual reproduction' is reproduction where two parents contribute genetically to an offspring, so the answer to your question is no.

Answer 7

Sort of...

In some species that use parthogenesis, s*x with a male is required, but the sperm are not used.

The male is not really a parent though.