ONS/ONCC Chemotherapy Immunotherapy Certificate Exam Lesson 1: Foundations to Set the Stage - ✔ Focusing on Cellular Structure and Function - ✔ The Normal Cell Cycle - ✔-The cell cycle refers to the ordered series of processes of DNA replication and mitosis, or cell division -Cell nucleus regulates these processes by gathering and processing complexes molecular information Interphase and Mitotic Phase - ✔Cell division produces two identical cells through these two major phases During interphase: - ✔Cell grows and DNA is replicated through the following three steps: 1: First growth phase (G1 or first gap) 2: Synthesis phase (S phase) 3:Mitotic Phse (M phase) First Growth Phase (G1 or first gap) - ✔-cells increase in size -reproduce RNA -"quality assurance" test that the cell will be ready to synthesis DNA -Length of time is variable, can be from hours to days Synthesis Phase (S phase) - ✔-DNA replicates -Results in the formation of identical pairs of DNA (chromatids) -which are attached a t the centromere -lasts 2-10 hours Mitotic Phase (M phase) - ✔-Replicated chromosomes are aligned, separated, and move into 2 new, identical daughter cells -takes about 30-60 minutes