PHI 2010 Chapter Notes - Chapter 12: Sister Chromatids, Dna Replication, Alarm Clock
Document Summary
Genome: the genetic material of an organism or virus; the complete complement of an organism"s or virus"s genes along with its noncoding nucleic acid sequences. The associated protein molecules maintain the structure of the chromosome and help control the activity of the genes. Chromatin: the complex of dna & proteins that makes up eukaryotic chromosomes. When the cell is not dividing, chromatin exists in its dispersed form, as a mass of very long, thin fibers that are not visible with a light microscope. Somatic cells: any cell in a multicellular organism except a sperm or egg or their precursors. Gametes: a haploid reproductive cell, such as an egg or sperm, that is formed by meiosis or is the descendant of cells formed by meiosis. Gametes unite during sexual reproduction to produce a diploid zygote. When the cell is not dividing then each chromosome is in the form of a long, thin chromatin fiber.
