Title: Gene.
Question: What was shown to be the molecular repository of genetic information by experiments in the 1940s to 1950s?

Title: Jehovah%27s Witnesses.
Question: What did Rutherford institute the appointment of in each congregation in 1919?

Title: Botany.
Question: What polymer is found in spores and pollen?

Title: Daylight saving time.
Question:
What can be affected by DST that might disrupt plans for a vacation?