Dictionary,Defintion,Meaning,What is Cell cycle, Cephalopod, Cenozoic, Centimogan(cM), Central Dogma, Centric Fusion

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Home >> Genetics Dictionary >> Cell cycle - Cephalopod

Your Ad Here	Cell Cycle The cycle of cell growth, replication of the genetic material, and nuclear and cytoplasmic division. 2. The cyclical events that occur during mitotic cell division. Cells oscillate between mitosis and interphase, which is made up of G1, S, and G2 phases. Cenozoic The era of geologic time from 65 mya to the present, a time when the modern continents formed and modern animals and plants evolved. Centimorgan (cM) A unit of measure of recombination frequency. One centimorgan is equal to a 1% chance that a marker at one genetic locus will be separated from a marker at a second locus due to crossing over in a single generation. In human beings, one centimorgan is equivalent, on average, to one million base pairs.
Central dogma The concept describing the functional interrelations between DNA, RNA, and protein; the direction of transmission is DNA arrow RNA arrow protein. Centric fusion Breakage in the very short arms of two acrocentric chromosomes, followed by fusion of the long parts into a single chromosome; the two small fragments are usually lost; also known as a Robertsonian event or translocation.
Centrifuge An apparatus used for the separation of substances by the application of centrifugal force generated by whirling at a high rate of rotation a vessel containing a fluid in which the substances are suspended. Centriole An organelle in many animal cells made of microtubules, involved in the formation of spindles during cell division. 2. A cylindrical cellular organelle that is found in eukaryotes; they migrate to the polar regions of the cell during mitosis and meiosis. Centromere A specialized chromosome region to which spindle fibers attach during cell division. 2. A point on a chromosome that is involved in separating the copies of the chromosome produced during cell division. During this division, paired chromosomes look somewhat like an X, and the centromere is the constriction in the center. 3. A constricted region in eukaryotic chromosomes on which the kinetochore lies	Your Ad Here
Cephalopod Cephalopods include squid, octopi, cuttlefish, and chambered nautiluses. They are mollusks with tentacles and move by forcing water through their bodies like a jet. Character (or characteristic) One of the many details of structure, form, or function that make up an individual. A phenotypic attribute. Any recognizable trait, feature, or property of an organism. Character displacement The increased difference between two closely related species where they live in the same geographic region (sympatry) as compared with where they live in different geographic regions (allopatry). Explained by the relative influences of intra- and inter-specific competition in sympatry and allopatry. Chiasma (plural: chiasmata) Crossed-over strands of chromatin between homologous chromosomes as seen during diplonema of meiosis I. 2. A point where non-sister chromatids exchanged genetic material during pachynema.

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