Biology 1001A Lecture Notes - Lecture 3: Centromere, Cytokinesis, Centrosome
Document Summary
Depending on the age, some cells would undergo a different type of division called meiosis, creating daughter cells that only have half the normal amount of chromosomes. Replication of dna of each chromosome creates two molecules called sister chromatids: the equal distribution is called chromosomal segregation. Interphase is the longest phase is cell division as it prepares the cell of mitosis (m cycle). Within the g1 cycle, the cell creates rna, proteins and other types of cellular molecules but not dna. G1 cycle stands for gap, where dna is not being replicated. After the g1 cycle, the s cycle begins; duplicating chromosomal proteins as well as dna and continues synthesis of other molecules as well. S cycle stands for synthesis, where dna is being (duh) synthesized. Once s cycle is completed, the cell enters g2 cycle, where dna synthesis stops, but other molecules contain to be replicated. After the end of the g2 cycle, actual cell division beings: prophase:
