In the human pedigree shown here, the daughter indicated by the black circle (II-1) has a form of deafness determined by a recessive allele. What is the probability that the phenotypically normal son (II 3) is heterozygous for the gene?

TLS Online TPP Program

#Question id: 31167

#Unit 7. System Physiology – Animal

Which of the following ionic changes is correctly matched with a component of the action potential?

TLS Online TPP Program

#Question id: 31168

#Unit 7. System Physiology – Animal

When the excitable cells are incapable of producing normal action potentials, phenomena known as:

TLS Online TPP Program

#Question id: 31169

#Unit 7. System Physiology – Animal

The basis for the relative refractory period is the: 

TLS Online TPP Program

#Question id: 31170

#Unit 7. System Physiology – Animal

Depolarization in myelinated axons travels from one node of Ranvier to the next, called as:

TLS Online TPP Program

#Question id: 31171

#Unit 7. System Physiology – Animal

Which of the following plays a key role in the initiation and regulation of the action potential?

TLS Online TPP Program

#Question id: 31172

#Unit 7. System Physiology – Animal

Which of the following is not a neurotrophin?