Science / Biology / Chromatin: A complex of DNA and protein in eukaryotic cells that is dispersed throughout the nucleus during interphase and condensed into chromosomes during meiosis and mitosis.


Science / Genetics / Euchromatin: The chromatin that shows the staining behavior characteristic of the majority of the chromosomal complement. MORE

Fluorescence In Situ Hybridization (FISH)

Science / Genetics / Fluorescence In Situ Hybridization (FISH): A physical mapping approach that uses fluorescein tags to detect hybridization of probes with metaphase chromosomes and with the less- condensed somatic interphase chromatin. MORE

S Phase

Science / Biology / S Phase: That period of interphase when new DNA is synthesized as part of replication of the chromatin. MORE


Science / Biology / Prophase: 1) The first stage of mitosis during which chromosomes condense, the nuclear envelope disappears, and the centrioles divide and migrate to opposite ends of the cell. 2) The first stage of mitosis and MORE


Science / Biology / Nucleoid: The area of the prokaryotic cytoplasm where the chromatin is localized. MORE


Science / Biology / Nucleosomes: Spherical bodies formed by coils of chromatin. The nucleosomes in turn are coiled to form the fibers that make up the chromosomes. MORE