Question

Each eukaryotic chromosome must contain the following DNA sequence elements: one centromere, two telomeres, and multiple origins of replication. What are the essential DNA sequence elements that must be present in each eukaryotic chromosome?

Answer 1

Each eukaryotic chromosome must contain a centromere, telomeres, and multiple origins of replication. These elements are crucial for the proper replication and distribution of chromosomes during cell division.

Step-by-step explanation:

The essential DNA sequence elements that must be present in each eukaryotic chromosome are:

1. One centromere: This is the region of the chromosome that is responsible for directing the movement of chromosomes during cell division.
2. Multiple origins of replication: These are sites where the replication of DNA begins so that the chromosomes can be duplicated before cell division.

During the eukaryotic cell cycle, DNA replication occurs to ensure that each daughter cell receives a complete set of chromosomes. The replicated chromosomes condense and become visible during mitosis, where they are sorted and distributed into the daughter cells.