Answer:
Because each duplicated chromosome consists of two identical sister chromatids joined at a point called the centromere, these structures now appear as X-shaped bodies when viewed under a microscope. Several DNA binding proteins catalyze the condensation process, including cohesin and condensin.
Explanation:
Answer:
I don't understand it I am so sorry
I would say D narrow temperature. Most other planets are too hot or cold to sustain life.
Hydrophobic heads face the inside while the hydrophilic tails face the outside
