The father produces ____ in his ____. The mother releases ____ cells from her ____. Egg and sperm cells are also called ____. They have a ____ that contains ____. When an egg and sperm ____ meet their nuclei ____ together. This is called Fertilisation. This means you get half of your genetic ____ from your ____ egg and half from your ____ sperm.This is why you often ____ a combination of ____ from both of your ____. We call this ____.

Fertilisation Yr9

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