Describe<span> how </span>eukaryotic cell's chromosomes change as a cell prepares to divide<span>. Before </span>cell<span> division each </span>chromosome<span> is replicated. At the beginning of division each </span>chromosome<span> has two daughter chromatids. ... A scientist treats </span>cells<span> with a chemical that prevents DNA synthesis.</span>
Answer:
There are four bases in DNA, and they combine in a specific way. Adenine pairs with thymine, and guanine pairs with cytosine.
Explanation:
Answer:
the Archaea, the Bacteria, and the Eukarya.
Explanation: