BIOL 1001 Chapter : Chapter 9 Part 2 Of 3
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Chapter 9 part 2 of 3 (begin material for exam 3) During interphase a cell __grows____, ___replicates its dna__, and often __differentiates_ Most eukaryotic cells spend the majority of their time in _interphase_ Ex: human skin cells replicate about once a day, spend about 22 h in interphase. Interphase contains three phases - g1, s, g2. During ___ g1 phase____the cell: almost always grows in size, often _differentiates (ex: nerve cells grow axons)___ Decides whether or not to divide based on signals. If signals cause the cell to divide then the cell enters __s phase__ Once the cell enters s phase it is _committed to dividing__, there is no turning back! During _s phase __the cell _replicates its dna_ fig. After s phase the cell enters _ g2___: more growth. Gives each daughter nucleus one copy of the parent cells replicated chromosomes: __cytokinesis___ cytoplasmic division. Places each of the nuclei into each daughter cell.
