<human>: Q: What mutation did Takahashi discover in 1994?
 A: Ron Konopka and Seymour Benzer isolated the first clock mutant in Drosophila in the early 1970s and mapped the "period" gene, the first discovered genetic determinant of behavioral rhythmicity.
 Does the answer correctly answer the question

OPTIONS:
- yes
- no
<bot>: no