Cell biology

Cell biology

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

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Cell biology

cuticle

Biology; Cell biology

A film composed of wax and cutin that occurs on the external surface of plant stems and leaves and helps to prevent water loss.

crossopterygians

Biology; Cell biology

A type of lobe-finned fish with lungs that were ancestral to amphibians.

cristae

Biology; Cell biology

Structures formed by the folding of the inner membrane of a mitochondrion (sing. : crista).

crossing-over

Biology; Cell biology

During the first meioticprophase, the process in which part of a chromatid is physically exchanged with another chromatid to form chromosomes with new allele combinations.

Cretaceous Period

Biology; Cell biology

The geologic period between the Jurassic Period (140 milliojn years ago) and the Tertiary Period (beginning 65 million years ago). The Cretaceous was marked by a mass extinction that closed the ...