Which of the following statements are true about the PR interval?

a. It includes the P wave and the PR segment

b. The beginning of electrical excitation of the atria and the beginning of excitation of the ventricles.

c. Conduction time through the AV node.

d. P wave + PR segment + QRS Complex

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#Question id: 3871

#SCPH06 I Botany

Which of the following is not known to be involved in initiation by eukaryotic RNA polymerase II?

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#Question id: 15239

#SCPH28 | Zoology

Which of the following are the three important components of gel Electrophoresis 

a) Current applied

b) Buffer system used 

c) Gel concentration 

d) Surface of electrophoresis kit

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#Question id: 8921

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

Evidence of which structure or characteristic would be most surprising to find among fossils of the Ediacaran fauna?

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#Question id: 10565

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

The term Yp is the hydrostatic pressure of the solution

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#Question id: 831

#SCPH01 Biochemistry

Lysosomes therefore also have a selective pathway, which is activated that imports and degrades cytosolic proteins containing the pentapeptide sequences such as;