Biology Year 7 - Structure of the Gametes
Humans have 46 chromosomes, 23 of which come from the egg (from the mum) and 23 of which come from the sperm (from the dad). XX chromosomes make a girl and XY chromosomes make a boy.
Egg
The egg is moved by cilia into the oviduct. The Yolk Sac (not shown in diagram) gives food to the cell.
Sperm
Energy is used to move towards the egg, directed by the tail.