The Structure That Divides the Chromosome into Longer and Shorter

Question

The structure that divides the chromosome into longer and shorter segments is called the
A) centromere
B) genome
C) mitochondria
D) centrioles

Accepted Answer

The centromere is the structure that holds the two sister chromatids together and divides the chromosome into two arms - a longer arm (q arm) and a shorter arm (p arm). This division is essential for proper segregation during cell division. Genome refers to the entire set of genetic material in an organism, mitochondria are organelles responsible for energy production, and centrioles are involved in cell division but do not divide the chromosome into arms.