Question

Which chromosome does not provide attachment site for spindle fibers?

• A. Acrocentric
• B. Metacentric
• C. Submeta centric
• D. Acentric

Answer 1

Answer: (A)

Acrocentric

A chromosome in which the centromere is located quite near one end of the chromosome is called the acrocentric chromosome. Humans normally have five pairs of acrocentric chromosomes. Down syndrome is caused by an extra acrocentric chromosome (chromosome21). The acrocentric chromosome does not provide the attachment site for spindle fibers because centromere is located quite near one end of the chromosome.

So, the correct answer is 'Acrocentric'.