Chapter 3, Problem 2RA

After the DNA molecule has replicated itself, the duplicate strands are called

$\begin{array}{l}\text{a}\text{. homologous chromosomes}\text{.}\hfill \\ \text{b}\text{. chromatids}\text{.}\hfill \\ \text{c}\text{. centromeres}\text{.}\hfill \\ \text{d}\text{. spindle fibers}\hfill \end{array}$