DP Biology (first assessment 2025)

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Question EXEX.1A.HL.TZ0.2

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Date Example questions Example questions Marks available [Maximum mark: 1] Reference code EXEX.1A.HL.TZ0.2
Level HL Paper 1A Time zone TZ0
Command term Question number 2 Adapted from N/A
2.
[Maximum mark: 1]
EXEX.1A.HL.TZ0.2

What allows to conclude that viruses might have evolved from cells?      


I.  Some viruses and eukaryotic cells have enzymes to synthesize DNA from RNA.    

II.  Some viruses have an envelop made of phospholipids, same as cell membranes.   

III.  Some viruses have similar genetic material to parasitic bacteria.  


A.  I and II only

B.  I and III only

C.  II and III only

D.  I, II and III

[1]

Markscheme

B

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