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

#Question id: 257

#SCPH12 I Genetics

ʺFive prime to three primeʺ description of a DNA strand refers to

#Question id: 27758

#Research Methodology

_______ as a testable statement of a potential relationship between two or more variables

#Question id: 4170

#SCPH01 Biochemistry

 Shifting of the reading frame by one nucleotide results in __.

#Question id: 86

#SCPH05 I Biotechnology

Examine the cyclic D-monosaccharide shown below. The ring structure is the ________ and the linear form of this monosaccharide must be a/an ________.

#Question id: 11405

#SCPH06 I Botany

Vulnerability to extinction can be linked to species following characteristics. Which of the following statement are correct?

A. Endemism species are more prone to extinction than fragmented

B. Species that are capable of migrating between fragments of habitat, such as between mainland areas and islands, may be more resistant to extinction

C. Population variability species are less prone to extinct

D. Species with naturally long life spans may be more likely to become extinct