CCR5 Genotype Test
Here are the results of testing the CCR5 gene in three individuals: an EU man, one of his parents, and a control individual (not necessarily in that order).

Use the results to determine each person’s genotype. Then determine which one is EU.

INSTRUCTIONS:
First, determine the correct genotype for the individuals.

Then select which individual is EU.

Selected Answer: Individual 3

Incorrect.
ndividual 3 has both a wildtype and a Δ32 CCR5 allele. Because this person makes some normal CCR5, his or her cells can be infected; so, the individual is not EU.

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