Sperm cell joins secondary oocyte Flashcards
1
Q
1st stage
A
Sperm erode corona radiata with aid of acrosomal enzymes in sperm head
2
Q
2nd stage
A
Sperm bind to the zona pellucida and digest a specific protein
3
Q
3rd stage
A
Hardening of the zona pellucida- prevent more sperm entering
4
Q
4th stage
A
Sperm cell nucleus swells and becomes the male pronucleus
5
Q
5th stage
A
Secondary oocyte completes meiosis, its nucleus becomes the female pronucleus
6
Q
6th stage
A
Egg and sperm unit- completing fertilization (form a zygote)
7
Q
Way of remembering the stages
A
Erode Elephants Bind Bath Hardening Halloumi Swells Smiling Completes Chatting Fertilisation Flying
