The doctor says there are "holes in the DNA, missing chromosomes". DNA doesn't contain chromosomes, chromosomes are made up of DNA.
The doctor said this because he was lying about a cure and was hoping that General Abbot wouldn't know enough about anything medical or catch on, which Abbot obviously didn't.
The doctor said this because he was lying about a cure and was hoping that General Abbot wouldn't know enough about anything medical or catch on, which Abbot obviously didn't.