Cell Division & Inheritance Flashcards
Cell Division (before)
Used for growth, repair (mitosis) and reproduction (meiosis). Allows genetic information to be passed onto next generation
What needs to happen before division?
DNA needs to undergo replication before division. DNA condensed divided into daughter cells. Everything in cell must divide.
* Prokaryotes divide by binary fission
* Eukaryotes divide either by:
○ Mitosis (body cells)
○ Meiosis (sex cells)
Cell cycle phases (two)
Interphase and miotic phase
Interphase
Gap phase 1 (Primary growth phase, Accumulating the building blocks of chromosomal DNA)
Synthesis (produce) phase (Replication of DNA)
Gap phase 2 (Organelles replicate, centrioles replicate; tubulin synthesis to form the spindle)