Contiguous map; contig map
The alignment of sequence data from large, adjacent regions of the genome to produce a continuous nucleotide sequence across a chromosomal region. See mapping.

Continuous culture
A suspension culture continuously supplied with nutrients by the inflow of fresh medium. The culture volume is normally constant. cf batch culture; closed continuous culture; continuous fermentation; open continuous culture.

Control
1. Noun: Unchanged (standard) protocol or treatment for comparison with the experimental treatment. The term is commonly used for untreated organisms. 2. Verb: To direct or regulate cultures with addition of plant growth regulators.

Controlled environment
The environment in which parameters, such as light, temperature, relative humidity and sometimes the partial gas pressure, are fully controlled.

Conversion
1. The development of a somatic embryo into a plant. See regeneration; micropropagation; organogenesis. 2. The fraction of a species entering a system which is converted to product.

Coordination number
The number of atomic or ionic nearest neighbors.

Coordinate repression
Correlated regulation of the structural genes in an operon by a molecule that interacts with the operator sequence.