Question

1. draw and label a chromosome.

Explanation:

A typical replicated chromosome (most commonly depicted for biological diagrams) has two identical sister chromatids held together by a centromere. Each chromatid contains a DNA molecule wrapped around proteins (histones). Key labels include the centromere (the constricted region that attaches to spindle fibers during cell division) and sister chromatids (the identical DNA copies).

Answer:

A labeled chromosome diagram includes:

1. Sister Chromatids: Two identical, rod-shaped structures (the replicated DNA strands)
2. Centromere: The narrow, constricted region that joins the two sister chromatids, serving as the attachment point for cell division machinery

(Visual description: Draw an elongated X-shape. Label the two identical halves as Sister Chromatids, and label the central constricted point where they meet as Centromere.)