TLS Online TPP Program

#Question id: 5615


The fast block to polyspermy is achieved by:

#Unit 5. Developmental Biology
  1. a change in the electric potential of  the egg cell membrane

  2. a change in the chemical potential of  the egg cell membrane

  3. a change in the electric potential of  the egg vitelline envelope

  4. a change in the chemical potential of the egg vitelline envelope