Trivia: In the Gattaca world, people like Vincent who fake their genetic profile are known as borrowed ladders. This is a reference to the double helix, or ladder shape, of DNA.
Trivia: One of the biggest themes in this film is DNA and how it can be used (and misused) to give information about people. It's interesting that the name 'Gattaca' is spelled using only the letters which stand for the four nucleotide bases which comprise DNA: guanine, adenine, thymine, and cytosine. The word GATTACA looks like a short sequence of DNA.
Trivia: The staircase in the house of the real Jerome Morrows is actually a resemblance of a DNA structure. Similar to Watson and Crick's model, except for the fact that the staircase has a right-handed turn. The DNA helix is a left-handed turn.
Answer: None whatsoever. The doctor seems to have worked out that Vincent is not who he seems to be from simple observational evidence. It's because of his son that he feels sympathy for Vincent and hasn't revealed that he's tricking the system.
Tailkinker ★