Question

Chromosome carrying centromeres at one end is :

• A. Metacentric
• B. Submetacentric
• C. Acrocentric
• D. Telecentric

Answer 1

Answer: (D)

Telecentric

A chromosome consists of two identical halves, the chomatids which are held together at one point. This point is known as centromere. The centromere appears as a narrow region called primary constriction, of the chromosome. On the sides of centromere, disc shaped structures are present known as kinetochores.
Depending on the position of centromere, chromosomes can be classified into four types:

• Metacentric
  
• Sub-metacentric
• Acrocentric
• Telocentric

Chromosome carrying centromeres at one end is called telocentric. It is also known as terminal chromosome because centromere is present at the terminal end. Thus, this chromosome appears to have a single arm.