2006-06-15 08:41:56 · 7 answers · asked by Roll Up 1 in Health ➔ Other - Health
it's too complicated..the DNA and stuff are in the sperm..even the blood groups (A B O or AB ) and the RH!!
2006-06-15 08:44:48 · answer #1 · answered by pussura 3 · 1⤊ 0⤋
The embryo makes its own blood. The mother's blood passes into the placenta, but not into the embryo/fetus. Things in the mother's blood can pass into the baby, though, like drugs and antibodies.
The embryo has a combination of its mother's and father's DNA.
2006-06-15 08:47:43 · answer #2 · answered by Pangolin 7 · 1⤊ 0⤋
The blood itself comes from the mother through the umbilical cord from the placenta. The combination of ova and sperm, the cell mitosis and the division are responsible for the life of the embryo, producing every thing that makes up the embryo, then the fetus, then you.
2006-06-15 08:46:19 · answer #3 · answered by Outman 4 · 0⤊ 0⤋
The Mother - through the umbilical cord
2006-06-15 08:44:16 · answer #4 · answered by agreenawald 1 · 0⤊ 0⤋
at first blood in embryo is formed by its own red bone marrow, liver and spleen. after birth only marow form blood. liver and spleen stop forming blood. in some leukemia spleen again forms blood cells.
2006-06-15 08:46:16 · answer #5 · answered by raihan 1 · 0⤊ 0⤋
Combination of BOTH. It is produced by their own marrow.
2006-06-15 08:43:28 · answer #6 · answered by cyanne2ak 7 · 0⤊ 0⤋
mine came from my mother. We are both ab negative.
2006-06-15 08:50:08 · answer #7 · answered by Anonymous · 0⤊ 0⤋