Author Question: A syphilitic chancre may persist indefinitely unless the patient is treated with antibiotics. ... (Read 89 times)

newbem · **on:** Jun 25, 2018

A syphilitic chancre may persist indefinitely unless the patient is treated with antibiotics.

Indicate whether the statement is true or false

Question 2

Which of the following statements regarding cystic fibrosis is INCORRECT?

A. The abnormal gene involved in the disease results from a mutation of a normal gene, the cystic fibrosis transmembrane regulator.
B. It is a relatively serious hereditary disease.
C. The disease usually manifests itself in infancy and childhood.
D. The CFTR gene regulates the movement of salt and water in and out of epithelial cells by means of ion channels located on cell membranes.