Where is the centromere located on the chromosome, and what is its role? 1. It is not exactly at the center, and it always makes the p-arm longer than the q-arm.
2. It is exactly at the center and it is responsible for making the q-arm longer than the p-arm.
3. It is not exactly at center, and it attaches to spindle fibers during cell division.
4. It is exactly at the center, and it attaches to spindle fibers during cell division.

Every time there is a full moon, mrs. cook insists that students in her classes display strange behavior. what would be the best way for her to prove the validity of her theory? a. keep a journal of student behavior during different phases of the moon cycle b. research data to find concrete evidence of a link between the moon cycle and human behavior c. ask students to keep a journal of how they are feeling during different phases of the moon cycle d. survey other teachers in the building to see if they notice similar behaviors during the full moon