Question 4
Question 4 of 40
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Older MCQs might not have the typical A, B, C, D choices. They have choices 1, 2, 3, and a combination of them is the answer. Below is the key that maps such combinations to the answer.
A 1, 2 and 3 are correct
B 1 and 2 only are correct
C 2 and 3 only are correct
D 1 only is correct
Topics Tested
18. Classification, biodi...
18.1. Classification

outline how viruses are classified, limited to the type of nucleic acid (RNA or DNA) and whether this is single stranded or double stranded

1. Cell structure
1.2. Cells as the basic units of li...

state that all viruses are non-cellular structures with a nucleic acid core (either DNA or RNA) and a capsid made of protein, and that some viruses have an outer envelope made of phospholipids

6. Nucleic acids and prot...
6.1. Structure of nucleic acids and...

describe the structure of an RNA molecule, using the example of messenger RNA (mRNA)