TLS Online TPP Program

#Question id: 16958


Plasmacytoma or myeloma tumors secrete large amounts of monoclonal antibodies into the serum and tissue fluids of the patients, and these antibodies can be purified in large quantities. Which statement is true for Bence-Jones proteins?

#Unit 4. Cell Communication and Cell Signaling
  1. tumors will secrete only the light chains, or sometimes both the light chains and the whole antibodies, into the serum. The homogenous light chains secreted by these myeloma tumors are referred to as Bence-Jones proteins.
  2. α and ¥ heavy chains led to further subclassification of these heavy chains into sub-isotypes and their corresponding antibodies.
  3. tumors will secrete only the light chains, or sometimes both the light chains and the whole antibodies, into the serum. The homogenous heavy chains secreted by these myeloma tumors are referred to as Bence-Jones proteins
  4. An antigenic determinant is defined as a region of an antigen that makes cotact with the antigen-combining region on an antibody.
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TLS Online TPP Program

#Question id: 21248

#Unit 7. System Physiology – Animal

An 11-year-old male was having difficulty reading the graphs that his teacher was showing at the front of classroom. His teacher recommended he be seen by an ophthalmologist. Not only was he asked to look at a Snellen letter chart for visual acuity but he was also asked to identify numbers in an Ishihara chart. He responded that he merely saw a bunch of dots. Abnormal color vision is 20 times more  common in men than women because most cases are caused by an abnormal

TLS Online TPP Program

#Question id: 21249

#Unit 7. System Physiology – Animal

Which of the following is not involved in color vision? 

TLS Online TPP Program

#Question id: 21250

#Unit 7. System Physiology – Animal

A 56-year-old female was diagnosed with a tumor near the base of the skull, impinging on her optic tract. Which of the following statements about the central visual pathway is correct?

TLS Online TPP Program

#Question id: 20268

#Unit 7. System Physiology – Animal

Choose correct statements about synthesis and processing of antidiuretic hormone and oxytocin.
a. ADH and oxytocin are homologous nonapeptides (containing nine amino acids).
b. Are synthesized in the supraoptic and paraventricular nuclei of the hypothalamus respectively.
c. The ADH neurons have their cell bodies primarily in the paraventricular nuclei.
d. The oxytocin neurons have their cell bodies primarily in supraoptic nuclei of the hypothalamus.

TLS Online TPP Program

#Question id: 20317

#Unit 7. System Physiology – Animal

Which of the following statements correctly describes the pathophysiology of Cushing's disease?

TLS Online TPP Program

#Question id: 20316

#Unit 7. System Physiology – Animal

Which of the following statements best describes Cushing's syndrome?