Which of the following statements about nerve growth factor is not true
a. it is made up of 3 polypeptide subunits
b. it is found in high concentration in the submaxillary salivery gland
c. it is picked up by nerves from the organs they innervate
d. it is present in brain
a. it is made up of 3 polypeptide subunits
b. it is found in high concentration in the submaxillary salivery gland
c. it is picked up by nerves from the organs they innervate
d. it is present in brain