TLS Online TPP Program

#Question id: 284


Which best describes the structure of a nucleosome core particle?

#SCPH12 I Genetics
  1. A histone octamer with DNA threaded through its center.

  2. About 50 bp of DNA associated with one histone H1 molecule.

  3. One nucleosome plus one histone H1 and linker DNA.

  4. A histone octamer wrapped approximately two times around with DNA.

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TLS Online TPP Program

#Question id: 24441

#SCPH06 I Botany

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

TLS Online TPP Program

#Question id: 24442

#SCPH01 Biochemistry

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: 24442

#SCPH06 I Botany

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

#SCPH01 Biochemistry

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

 

TLS Online TPP Program

#Question id: 24443

#SCPH06 I Botany

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

 

TLS Online TPP Program

#Question id: 24444

#SCPH01 Biochemistry

What is the His bundle electrogram (HBE)?