Question 25
Question 25 of 40
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No letter options?
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
6. Nucleic acids and prot...
6.1. Structure of nucleic acids and...

state that the bases adenine and guanine are purines with a double ring structure, and that the bases cytosine, thymine and uracil are pyrimidines with a single ring structure (structural formulae for bases are not expected)

6. Nucleic acids and prot...
6.2. Protein synthesis

state that a gene mutation is a change in the sequence of base pairs in a DNA molecule that may result in an altered polypeptide