Question

How do the linear chromosomes in eukaryotes ensure that its ends are replicated completely?

Short answer

The 3' end of the primer is produced and expanded by telomerase using an internal RNA template. The ends are so shielded.

Step-by-step solution

Introduction 

Multiple pairs of linear chromosomes, all of which are located in the cellular nucleus, are normally present in eukaryotes, and these chromosomes have distinct and adaptable shapes.

The explanation for the answer. 

As a result, each time a chromosome is replicated, a little portion of its DNA molecules shrink. The end-replication problem is another name for this issue. The end-replication issue has been resolved in eukaryotes by identifying the telomeres, or highly repetitive DNA sequences, at the ends of each linear chromosome.