Question

Centromeres are required for

a. proper replication of the ends of chromosomes
b. the movement of RNA out of the nucleus
c. the compaction of DNA into chromatin
d. the correct partitioning of chromosomes during cell division
e. correct initiation of DNA replication

Answer 1

Centromeres are required for accurate DNA replication, partitioning of chromosomes during cell division, and attachment of mitotic spindle fibers. They are crucial for the proper movement and division of chromosomes.

Step-by-step explanation:

Centromeres are regions of attachment for sister chromatids and are required for accurate and complete DNA replication, as well as the correct partitioning of chromosomes during cell division. The centromere helps in the proper attachment of mitotic spindle fibers to kinetochores, which allows for the movement of chromosomes. Without centromeres, the replication and division of chromosomes would not occur correctly.