Question

Clock genes and their products

a. have a face and hands, and tell time
b. interrupt natural circadian rhythms
c. establish rhythms through cyclic transcriptional regulation
d. establish rhythms by turning "on" once every 24 hours

Answer 1

Clock genes and their products establish rhythms through cyclic transcriptional regulation in a 24-hour cycle.

Step-by-step explanation:

Circadian rhythms are biological rhythms that occur in a 24-hour cycle. These rhythms are controlled by a structure called the biological clock, located in a gland at the base of the brain. Clock genes and their products play a crucial role in establishing and regulating these rhythms through cyclic transcriptional regulation. They do not have a face and hands or interrupt natural circadian rhythms. Instead, clock genes turn 'on' once every 24 hours, establishing the rhythmic patterns.