Design an experiment to determine whether a potential pathogen produces hemolysins
What will be an ideal response?
Answer: Bacterial production of hemolysins is demonstrated in the laboratory by streaking the pathogen on blood agar plates containing 5% sheep's blood. If hemolysins are produced and released, red blood cell lysis will occur, releasing hemoglobin and creating a clear area called a zone of hemolysis around the growing colonies.
You might also like to view...
When threshold potential is reached, which of the following occurs?
a. The activation gates of Na+ channels close. b. The inactivation gates of Na+ channels close. c. The activation gates of K+ channels close. d. The inactivation gates of Na+ channels close. e. Na+/K+ active transport pumps are activated.
The source of calcitonin is the
a. pituitary gland. b. adrenal cortex. c. adrenal medulla. d. thymus gland. e. thyroid gland.
Thymine can be converted to uracil by a chemical mutagen. Indicate whether the statement is true or false
What is genetic counseling? Briefly explain the role of a genetic counselor. What will be an ideal response?