What are telomeres? What are telomeres? ""junk DNA"" present throughout the length of our chromosomes protein caps found on the ends of chromosomes DNA sequences which code for making proteins that regulate cell division regions of DNA at the end of chromosomes which do not code for making proteins

Option (4).

Explanation:

Chromosome may be defined as highly compact DNA structure. The eukaryotic chromosome of different parts like centromere, short arm, long arm of chromosome and telomeres.

The telomeres are the DNA sequences present at the end of chromosome. These telomeres do not code for the proteins and get shorten after each round of replication. Telomeres are responsible for ageing in the living organisms.

Thus, the correct answer is option (4).