Encyclopedia of Biology

gesiand T. splendensEwing. Also called jiggers and redbugs. Chiggers cause skin irritation in humans and dermatitis in animals. ...

classes, Elasmobranchii (sharks, skates, and rays) and Holocephali (chimaeras). chondrin A substance that forms the matrix of ca ...

66 cilium Chromosome chromatid chromatid telomere telomere centromere Cell histones A A A T T T G G G C C C nucleus base pairs D ...

cilium 67 Human Cytogenetics: Historical Overview and Latest Developments by Betty Harrison Cytogenetics, the study of chromosom ...

outer double microtubules with two inner single microtubules, and it is anchored by a basal body. Single-cell organisms, such as ...

circadian rhythm A biological process that oscil- lates with an approximate 24-hour periodicity, even if there are no external t ...

female, usually of another species, and appropriates it for the rearing of her own offspring. climax The final stage in successi ...

clonal selection theory(Burnett theory) Clonal selection theory states that the specificity and diversity ofan immune response a ...

atinocytes, and glial cells. HIV invades cells by attach- ing itself to the CD4 molecule (CD4 receptor). The number of T4 cells ...

codon 73 Scanning electron micrograph (SEM) of a vertical section through part of the cochlea inside a human ear. The section sh ...

of a specific amino acid into a protein, or (b) repre- sents the starting or termination signal of protein synthesis. See alsoME ...

coevolution The evolution of two species where the evolutionary changes in one of the species influences the evolution of the ot ...

Collembola Anarthropod order resembling small insects that are wingless and can jump remarkable distances. collenchyma cell One ...

and transcribing it back into a double-stranded DNA using the enzyme reverse transcriptase. However, the cDNA does not include i ...

(17 feet) in height and is native from Quebec to British Columbia in Canada and southward to Flori- da, Arkansas, and California ...

Mugwort (Artemisia vulgaris, A. campestris, A. dra- cunculus, A. rupestris, A. mutellina, A. absinthium, A.maritima, A. austriac ...

iodate ions react together, they form elemental iodine. The reverse of DISPROPORTIONATION. computational chemistry A discipline ...

family Cupressaceae (e.g., cedar); family Taxaceae (e.g., yew); family Taxodiaceae (e.g., redwood); and family Pinaceae (e.g., p ...

plates that the continents sit on moved, the superconti- nent broke up and began to move apart. This process is known as contine ...

the University of Vienna and a year as assistant in pharmacology at the University of Graz until, in 1922, heaccepted a position ...