CFD 3240 Lecture 12: Cell Reproduction
20 Feb 2019
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Chapter 18 & 20 (ireland) & chapter 2 (snustad) Explain what mitosis is used for, in what cells and the 4 stages. What are the six 6 c"s for cellular reproduction. Chromosomes are dna packages in the cell nucleus. Very long dna molecule in association with protein. Sum of chromosomes in a given type of cell. Humans have 46; 23 from each parent. Divisions of parent nucleus sorts dna into nucleus for each daughter cell. Part of the life cycle; series of recurring events in which individuals: Maintains diploid chromosome number (2n 2n) Halve the diploid number to haploid (2n 1n) Every time a new cell comes into being, a multistep cell cycle begins anew. S: dna chromosomes are copied through replication. Chromosomes sorted into two sets four phases: cytokinesis. A chromosome undergoes changes in preparation for cell division. A chromosome is nothing more than coiled loops of dna and proteins. Chromosome has its typical size and shape.
