Which of the following effects might be caused by reduced or very little active telomerase activity?

TLS Online TPP Program

#Question id: 19708

#Unit 13. Methods in Biology

In complete heart block

TLS Online TPP Program

#Question id: 24439

#Unit 13. Methods in Biology

If heart rate is 75 beats/minute, what is the R-R interval in units of milliseconds?

TLS Online TPP Program

#Question id: 24440

#Unit 13. Methods in Biology

If the R-R interval is 800 msec (0.8 sec), what is the heart rate?

TLS Online TPP Program

#Question id: 24441

#Unit 13. Methods in Biology

If the heart rate is 90 beats/min, what is the cycle length?

TLS Online TPP Program

#Question id: 24442

#Unit 13. Methods in Biology

Match the following Column I with Column II 

Column I	Column II
A. PR segment	i. Plateau portion of the ventricular action potential
B. PR interval	ii. Conduction through atrioventricular node
C. ST segment	iii. The time from initial depolarization of the atria to initial depolarization of the ventricles
D. ST interval	iv. An isoelectric portion of the QT interval

TLS Online TPP Program

#Question id: 24443

#Unit 13. Methods in Biology

Normal electrocardiograms recorded from the three standard bipolar limb leads (I, II, III). Match the following.

Column I	Column II
a. P wave	i. Positive
b. T wave	ii. Negative
c. R wave
d. S wave