Context: A defect in the human homologue of the Drosophila "period" gene was identified as a cause of the sleep disorder FASPS (Familial advanced sleep phase syndrome), underscoring the conserved nature of the molecular circadian clock through evolution. Many more genetic components of the biological clock are now known. Their interactions result in an interlocked feedback loop of gene products resulting in periodic fluctuations that the cells of the body interpret as a specific time of the day.[citation needed]

Question: What is the Drosophila gene the cause of?
Answer: sleep disorder FASPS

Question: What is the Drosophila gene also known as?
Answer: period

Question: What is Familial advanced sleep phase syndrome?
Answer: FASPS

Question: What kind of clock have genetic functions?
Answer: biological clock

Question: What does the body interpret from the gene feedback loop?
Answer: time of the day

Question: What Jean is responsible for the circadian rhythm?
Answer: Unanswerable

Question: What kind of clock does not have genetic functions?
Answer: Unanswerable

Question: How do cells of the body interpret fluctuations in light?
Answer: Unanswerable

Question: What does a defect in the period genome cause?
Answer: Unanswerable