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

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#Question id: 8717

#SCPH05 I Biotechnology

Molecular clocks are more reliable when ________.

TLS Online TPP Program

#Question id: 8900

#SCPH06 I Botany

Which of the following statements about craniates is (are) correct?

1. Craniates are more highly cephalized than are non-craniates.

2. Craniatesʹ genomic evolution includes duplication of clusters of genes that code for transcription factors.

3. The craniate clade is synonymous with the vertebrate clade.

4. Pharyngeal slits that can assist in gas exchange originated in craniates,

5. The two-chambered heart originated with the early craniates.

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#Question id: 14113

#I Life Science/ Life Sciences Group – I-V

SWISS-PROT is related to 

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#Question id: 3523

#SCPH06 I Botany

If the number of heterozygous pairs involved in a particular cross is three, the phenotype ratio obtained in their F2 generation will be-

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#Question id: 4165

#SCPH01 Biochemistry

Which is true about proofreading activity during the synthesis of aminoacyl-tRNAs?