Viewing a single comment thread. View all comments

SweetBasil_ t1_iwdms6k wrote

  1. all sperm cells do not carry the same DNA, they each carry a different mixture of the two sets of genes the father got from his two parents (everyone has two copies of their genes, one from their mother, one from their father).
  2. all egg cells do not carry the same DNA. As above, they carry a random mix of the genes from the mother's two parents.
  3. the chance of any two sperm or eggs having the exact mix are so low that this never really happens. this is why children from the same parents are not identical.
6