Question

After chromosomes are duplicated, the identical copies A. divide again before mitosis can begin. B. are attached to each other by a cytosome. C. are called twin chromosomes. D. are attached to each other by a centromere. E. are separated and paired with their homologous chromosomes.

Answer 1

The chromosomes are called twin chromosomes after duplication.

Step-by-step explanation:

• During mitosis, the first process is the separation of homologous pair of sister chromatids and moving apart to opposite poles.
• secondly, it is duplicated into two homologous pairs.
• The homologous pairs or the duplicated copy is being attached to each other by a centromere.
• These are called twin chromosomes.
• After duplication, the chromosomes divide again before cell membrane formation.