Inversion

inversion A structural change with a chromosome whereby the order of gene loci is reversed. Source: Jenkins, John B. 1990. Human Genetics, 2nd Edition. New York: Harper & Row ...

An inversion not involving the centromere. A chromosomal inversion that does not include the centromere. A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ...

Inversion The term introduccd by Sturtevant (1926) for the reversal of the linear sequence of the genes in a segment of a chromosome.

inversion/eversion Tibialis anterior/Fibularis brevis Torso Rectus abdominis/Erector spinae ...

inversion A reversal in the order of genes on a chromosome segment. ion An atom that has lost or gained electrons from its outer shell and therefore has a positive or negative charge, respectively; ...

inversion An aberration in chromosome structure resulting from an error in meiosis or from mutagens; reattachment in a reverse orientation of a chromosomal fragment to the chromosome from which the fragment originated. invertebrate ...

Inversion A DNA rearrangement where a sequence of nucleotides is in the reverse orientation relative to the rest of the molecule.

Inversion A segment of a chromosome may become turned around forming an inversion. This can cause altered gene activity, a loss of crossing-over, or a duplication/deletion if crossing-over does occur.

inversion A chromosome re-arrangement that reverses the order of a linear array of genes in it. inverted repeat Two regions of a nucleic acid molecule which have the same nucleotide sequence but in an inverted orientation, such as ...

inversion A turning inward or inside out, as in embryogenesis of sponges; also, reversal in order of genes or reversal of a chromosome segment. involucre Whorl of bracts that subtend a flower or an inflorescence.

Inversion A chromosomal rearrangement in which a segment of chromosome is turned end for end. A pericentric inversion includes the centromere, a paracentric inversion does not.

In G inversion the orientation of Mu phage G segment determines tail fibre expression and thus host range (E.coli or Citrobacter). A similar variation in tail fiber expression is due to Cin in bacteriophage P. Full article ...

Because inversion of the three substituent groups bonded to the nitrogen of an amine around the nitrogen's lone electron pair is usually possible, the nitrogen in the amine functional group will usually not be a chiral center.

For human inversions, the results of the analyses revealed a total of 124 BACs (2.5%) mapping to two or more sites on the same chromosome, of which 81 (65%) mapped to one of 27 distinct human inversion sites, ...

Chromosomal inversion Chromosome segments that have been turned 180 degrees. The gene sequence for the segment is reversed with respect to the rest of the chromosome. Chromosome ...

Applied to a chromatid or chromosome with two centromeres , such as arises in an inversion heterozygote as a result of crossing-over between a normal and an inverted segment that does not include the centromere. Related Terms: Chromatid ...

We don't absolutely know for sure, but we suspect that [there was] a series of inversions of big chunks of DNA on the Y chromosome. We think [this] made it unable to pair up or align precisely and accurately with the X chromosome.

(fluorescence in situ hybridization): One of the more modern methods in cytogenetics, which uses fluorescence-labelled chromosome-specific DNA, probes to detect translocations, inversions, deletions, ...

Dextrose and levulose are obtained by the inversion of cane sugar or sucrose, and hence called invert sugar. Dextrose is chiefly obtained by the action of heat and acids on starch, and hence called also starch sugar.

translocations deletions duplications inversions Links to three examples of cancers associated with translocations.

Based on the results obtained so far, Charbonneau suggests that GAs can and should find use in other difficult problems in astrophysics, in particular inverse problems such as Doppler imaging and helioseismic inversions.

gamma rays Used to induce mutations.Induceds many types of mutations such as small deletions, large deletions, chromosome inversions and rearrangements.

Non disjunction and changes in number (pre and post zygotic); polyploidy, aneuploidy, spontaneous abortions (SABs), advanced maternal age (AMA) Changes in structure Inherited and de novo structural changes; translocations, deletions and inversions, ...

Inversion Occurs where a chromosome breaks in two and becomes reattached in reverse orientation. This may or may not affect gene function.

See also: Sequence, DNA, Trans, Organ, Chromosome