click below
click below
Normal Size Small Size show me how
Mitosis
Ap Bio
| Question | Answer |
|---|---|
| What is interphase | The period of cell growth, DNA replication, and normal functions |
| what occurs during prometaphase | Nuclear envelope fragments and spindle fibers attach to kinetochores |
| What is the centrosome? | The microtubule-organizing center of animal cells |
| What is cell division? | The process by which a parent cell divides into two daughter cells |
| What are somatic cells? | All non-reproductive body cells |
| What happens during prophase? | Chromosomes condense, the nuclear envelope begins to break down, and spindle fibers start to form |
| What is chromatin? | DNA wrapped around histone proteins in a less-condensed form |
| What happens during G2? | The cell finishes growing and prepares for mitosis |
| What is a cleavage furrow? | A contractile ring of actin that pinches the cytoplasm during animal cell cytokinesis |
| What defines telophase? | Chromosomes fully uncoil, nuclear envelopes reform, and spindle fibers disassemble |
| What is the cell plate | A structure that forms during plant cell cytokinesis to create a new cell wall |
| What happens during G1? | The cell grows and carries out normal metabolic functions |
| What are sister chromatids? | Identical copies of a chromosome attached at the centromere |
| What is mitosis? | Division of the nucleus to produce genetically identical daughter nuclei |
| What is a chromosome? | A single DNA molecule tightly coiled and condensed |
| What happens during anaphase? | Sister chromatids separate and move toward opposite poles |
| Centromere | The region where sister chromatids join |
| What happens during S phase? | DNA is replicated to form sister chromatids |
| What defines metaphase? | Chromosomes align along the cell’s equatorial plane |
| What is the best definition of the cell cycle? | The series of events that cells go through as they grow and divide |
| What is cytokinesis? | The division of the cytoplasm into two daughter cells |
| What are centrioles? | Structures that help organize microtubules during cell division |