Why is it important for egg and sperm cells to join in fertilization??

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Why is it important for egg and sperm cells to join in fertilization??

2007-05-15 12:08:47 · 3 answers · asked by shannon2rocks 1 in Science & Mathematics ➔ Biology

3 answers

The egg cell and the sperm cell each contain half of the DNA needed to make a complete human embryo. The two cells must join together in order to give the correct number of chromosomes (46 total, or 23 from each sperm and egg cell).

2007-05-15 12:26:53 · answer #1 · answered by Brooke 3 · 2⤊ 0⤋

If the egg and sperm do not join then there is no fertilization and both ova and sperm would simply die off.

2007-05-16 03:12:17 · answer #2 · answered by james b 1 · 0⤊ 0⤋

It's not important. It is just what has to happen occassionally if a species is to continue to exist.

2007-05-15 14:58:46 · answer #3 · answered by Joan H 6 · 0⤊ 0⤋