Question

Nucleoprotein structures found at the end of chromosome are

• A. Centromere
• B. Telomeres
• C. Satellites
• D. Centrosomes

Answer 1

Answer: (B)

Telomeres

• Telomeres are essential nucleoprotein structures at the ends of eukaryotic chromosomes. They play several essential roles preserving genome stability and function, including distinguishing chromosome ends from DNA double-stranded breaks (DSBs) and maintenance of chromosome length.
• The centromere is the point of attachment of the kinetochore, a structure to which the microtubules of the mitotic spindle become anchored.
  
• Satellite DNA consists of very large arrays of tandemly repeating, non-coding DNA. Satellite DNA is the main component of functional centromeres, and form the main structural constituent of heterochromatin.
  

So, the correct answer is 'Telomeres'.