In the laboratory assay on digestion of the protein BAPNA by trypsin, what was the purpose of including a tube with trypsin alone?
A) to indicate that trypsin did not contribute to the yellow (positive) color
B) to indicate that trypsin did not contribute to the clear (positive) color
C) to indicate that BAPNA did not contribute to the clear (positive) color
D) to indicate that BAPNA did not contribute to the yellow (positive) color
Answer: A
You might also like to view...
Which of the following joints permits slight movement?
A) gomphosis B) suture C) syndesmosis D) synchondrosis E) synovial
The lacrimal bone contains a grove that forms part of lacrimal fossa. Along with the soft tissue of the lacrimal sac, these structures drain tears from the eye into the nasal passage
Indicate whether the statement is true or false
Which cell is incorrectly matched with the characteristic?
A) basophils - have granules containing histamine and heparin B) neutrophils - most abundant white cell C) neutrophils - most difficult to identify D) eosinophils - cytotoxic cells may live only 6-12 hours E) eosinophils - numbers increase with allergies and parasites
Which one of the following best describes the order of a somatic reflex?
A. Somatic receptor ? efferent nerve fiber ? afferent nerve fiber ? interneuron ? skeletal muscle B. Somatic receptor ? efferent nerve fiber ? interneuron ? afferent nerve fiber ? skeletal muscle C. Somatic receptor ? afferent nerve fiber ? interneuron ? efferent nerve fiber ? smooth muscle D. Somatic receptor ? afferent nerve fiber ? interneuron ? efferent nerve fiber ? skeletal muscle E. Somatic receptor ? interneuron ? afferent nerve fiber ? efferent nerve fiber ? skeletal muscle