Cyclodextrin - cyclic polymer of dextrose

Cystein - an amino acid

Cytolysis - cell disintegration

Cytoplasm - the living material of the cell, exclusive of the nucleus, consisting of a complex protein matrix or gel The part of the cell in which essential membranes and cellular organelles (mitochonidria, plastids, etc) reside

Cytokinesis - cytoplasmic division and other changes exclusive of nuclear division that are a part of mitosis or meiosis

Cytoplasmic genes - DNA-containing bodies in the cell but external to the nucleus.

Cytoplasmic inheritance - hereditaly transmission dependent on the cytoplasm rather than the nuclear genes; extrachomosomal inheritance Tjus, plastid characteristics in plants are inherited by a mechanism independent of nuclear genes

Cytoplasmic male sterility - genetic defect due to defective functions of mitochondria in the pollen Fertilisation will not occur Exploited in certain plant breeding strategies, such as FI-hybrid maize cultivars.

Cytology - The study of the structure and function of cells.

Cytoplasmic organelles - discrete sub-cellular structures located in the cytoplasm of cells; these allow division of labour within the cell

Cytosine - a pyrimidine base found in DNA and RNA.

Cytosol - The fluid portion of the cytoplasm, ie, the cytoplasm minus its organelles

Cytotype - a maternally inherited cellular condition in Drosophila that regulates the activity of transposable P elements.