I believe it is DNA: deoxyribonucleic acid
The correct answer of the given question above would be the r<span>egulation of the cell cycle at internal checkpoints. The regulation of the cell cycle at internal checkpoints is the criteria that you can use to assess the developmental potential of a cell. </span>
The Achilles tendon<span> connects the calf muscle to the heel bone, and can become injured when it is overstretched, torn, or completely ruptured.
Hope this helps!
-Payshence xoxo</span>
