Cell biology

Cell biology

The study of cell structure, physiological properties, interactions with the environment and life cycle.

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Cell biology

chromatin

Biology; Cell biology

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.

chorionic villi sampling (CVS)

Biology; Cell biology

A method of prenatal testing in which fetal cells from the fetal side of the placenta (chorionic villi) are extracted and analyzed for chromosomal and biochemical defects.

chromatid

Biology; Cell biology

Generally refers to a strand of a replicated chromosome; consists of DNA and protein.

cholecystokinin

Biology; Cell biology

A hormone secreted in the duodenum that causes the gallbladder to release bile and the pancreas to secrete lipase. .

chitin

Biology; Cell biology

A polysaccharide contained in fungi; also forms part of the hard outer covering of insects.

chlamydia

Biology; Cell biology

A sexually transmitted disease caused by a parasitic bacterium that lives inside cells of the reproductive tract.

chlorofluorocarbons (CFCs)

Biology; Cell biology

Chemical substances used in refrigerators, air conditioners, and solvents that drift to the upper stratosphere and dissociate. Chlorine released by CFCs reacts with ozone, eroding the ozone layer.