| telognosis | An obsolete term denoting diagnosis by means of radiographs or other diagnostic tests transmitted by telephone or radio. See: teleradiology. Origin: G. Tele, distant, + gnosis, a knowing (05 Mar 2000) |
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| telokin | <biochemistry> Acidic protein (24 kD) found in some muscle tissue, identical to the C terminal 155 residues of smooth muscle myosin light chain kinase (MLCK) and independently expressed. (18 Nov 1997) |
| telokinesia | Synonym: telophase. Origin: G. Telos, end, + kinesis, movement (05 Mar 2000) |
| telolecithal | Denoting an ovum in which a large amount of deuteroplasm accumulates at the vegetative pole, as in the eggs of birds and reptiles. Origin: G. Telos, end, + G. Lekithos, yolk (05 Mar 2000) |
| telolecithal egg | An egg containing a relatively large quantity of deutoplasm concentrated at the abapical pole; e.g., egg's of reptiles and birds. (05 Mar 2000) |
| telolecithal ovum | An ovum in which there is a large amount of yolk massed at the vegetative pole, as in the eggs of birds and reptiles. (05 Mar 2000) |
| telomerase | <enzyme, molecular biology> A DNA polymerase with rather unusual properties that will only elongate oligonucleotides from the telomere and not other sequences. The enzyme contains an essential 159 residue RNA sequence that provides a template for the replication of the G rich telomere sequences (so that the enzyme could in fact be considered a reverse transcriptase). (18 Nov 1997) |
| telomere | <genetics> The end of a chromosome. (18 Nov 1997) |
| telomere terminal transferase | <enzyme> From oxytricha nova; adds two to seven tandem repeats of the sequence ggggtttt to the 3' end of oligonucleotide primers ending in repeats of g4t4 and always adds the repeats in the proper phase Registry number: EC 2.7.7.- (26 Jun 1999) |
| telomeric R-banding stain | <technique> A modified R-banding stain in which the telomeres become strongly stained and faint R-banding still occurs over the rest of the chromosomes; uses air-dried slides, aging for several days, and staining in hot phosphate-buffered Giemsa stain. (05 Mar 2000) |
| telopeptide | <biochemistry, molecular biology> Portions of the amino acid sequence of a protein that are removed in maturation of the protein. Best example are the N and C terminal telopeptides of procollagen that are involved in development of the quaternary structure and are then proteolytically removed by procollagen peptidases. (16 Dec 1997) |
| telophase | The final stage of mitosis or meiosis, when chromosome separation is completed. (18 Nov 1997) |
| telophase i | The stage in the first meiotic division of meiosis that follows anaphase I. The two sets of chromosomes have finished moving to opposite ends of the cell. Cytokinesis occurs, forming two daughter cells. Nuclear membranes do not form and the chromosomes do not decondense at this point, however, as they would in mitosis. (09 Oct 1997) |
| telophase II | The last stage in the second meiotic division of meiosis which follows anaphase II. The two sets of chromosomes have finished moving to opposite ends of each of the two cells produced during the first meiotic division. Cytokinesis occurs, resulting in four haploid cells. (09 Oct 1997) |
| Telosporea | A class of homoxenous or heteroxenous parasitic protozoa exhibiting both sexual and asexual phases. Locomotion is by body flexion, gliding, or undulations of longitudinal ridges. Pseudopods, if present, are used only for feeding. It comprises three subclasses: gregarinia, coccidia, and piroplasmia. (12 Dec 1998) |