A chromosome abnormality in which part or all of a single chromosome has been lost.

a type of mutation in which a break in the DNA sugar-phosphate backbone results in the permanent loss of a piece of a chromosome.

The loss of genetic material from a gene or a chromosome.

A mutation that removes one or more nucleotides from the DNA.

a mutation that occurs when a nucleotide is left out of a gene sequence, causing a frame shift.

A removal of a portion of a gene.

Loss of a DNA (chromosome) segment from a chromosome. Deletions are recognised genetically by: absence of reverse mutation presence of a deletion loop at meiosis visualized cytologically revealing of recessive lethals pseudodominance

a process where nucleotides are lost from DNA. It results in codon changes.

A chromosomal condition in which a piece of a chromosome has been lost. This occurs when a chromosomal fragment that breaks off and does not rejoin any chromosome.

The removal of one or more bases from a DNA sequence.

a character in the pattern for which no character in the matched sequence corresponds to

a condition where some chromosomal

a missed landmark where EVA detected no landmark in the vicinity of the hand-labeled landmark

a predisposing cause for sensorineural hearing loss

A missing portion of genetic material, from within either a gene, section of DNA, or piece of chromosome.

The missing portion of an experience either linguistically or representationally.

A kind of genetic mutation that results when a chromosome loses a piece of DNA, leading to disease or other abnormalities.

Loss of a segment of DNA, which may be as small as a single base, or large enough to encompass one or more genes.

A mutation involving the loss of genetic material. The size of a deletion may vary from a single nucleotide to a chromosome segment

The absence of bases that are present in the wild-type DNA sequence.

In genetics, any spontaneous elimination of a section of genetic material (ie, from a chromosome) either in nature or in the laboratory. A deletion is a type of mutation.

The loss of some genetic material from a chromosome. If the deletion is large, it may be observed as missing chromosomal material; if it is small, it may only be detected by analysing the composition of the DNA.

Loss of a whole chromosome or part of a chromosome. The term usually refers to loss of part of a chromosome (partial deletion). A terminal deletion refers to breakage and loss off the end of a chromosome; interstitial deletion is the loss of material from within the chromosome, between the ends.

A chromosomal alteration in which a portion of the chromosome or the underlying DNA is lost.

excision of a DNA fragment, as opposed to insertion; mutation occurring naturally, but also artificially by using a molecular biological strategy

the loss of a segment of genetic material.

A missing piece of chromosomal material. In PWS, the deletion is in the proximal long arm of chromosome 15.

Interstitial loss of a sometimes, but not always, cytologically visible segment of genetic material from a chromosome. A multilocus deletion involves more than a single locus, such that adjacent genetic material constituting a part of, or the whole, neighboring locus or loci has also been lost. An intragenic deletion involves one or more adjacent nucleotides within a gene and may result in a frameshift mutation, loss of one or more exon sequences, or loss of regulatory regions that may not be involved in the coding sequence.

a loss of genetic material from a chromosome; this loss may or may not be grossly visible and may result in mutational changes.

Absence of a segment of DNA; may be as small as a single base or as large as one or more genes Related Terms: DNA-based testing ; FISH ; band ; chromosome ; contiguous gene syndrome ; critical region ; disease-causing mutation ; high-resolution chromosome studies ; karyotype ; microdeletion syndrome

In speech of thought, missing out a portion of an experience.

A type of mutation where a section of a gene or of a chromosome is missing. Deletions may or may not have a phenotypic consequence, depending on the normal role of the DNA which is absent.

a chromosome alteration resulting in the loss of a piece of the genetic material, and therefore, the genetic information the segment contains.

in the process of DNA replication, a deletion occurs if a nucleotide or series of nucleotides is not copied. Such deletions may be harmless, may result in disease, or may in rare cases be beneficial.

Elimination of a gene, in nature or in the laboratory.

A type of mutation caused by the loss of one or more adjacent base pairs from a gene.

A particular kind of mutation: loss of a piece of DNA from a chromosome. Deletion of a gene or part of a gene can lead to a disease or abnormality.

Removal of a chromosomal segment from a chromosome set.

loss or removal of a sequence of DNA with the regions on either side being joined together.

22 syndromes (#Catch 22 syndrome): Three sydromes that are originally thought to be three separate syndromes are included but their clinical phenotype overlap. The overall incidence of all three disorders is about 1 per 3,000 to 4,000 in the general population. Catch 22 (cardiac abnormalities, abnormal facies, thymic hypoplasia, cleft palate, hypocalcemia, and deletion on chromosome 22) is acronym. The 22q deletion syndromes include: · DiGeorge syndrome (DGS): Thymic aplasia, T-cell mediated immune defects, hypoparathyroidism, cardiac defects, and characteristic facial anomalies). · Conotruncal anomaly face syndrome (CTAFS): Characteristic facial features, conotruncal anomalies, and developmental delays. · Shprintzen syndrome or velocardiofacial syndrome (VCFS): Characteristic facial features, learning problems, cardiac anomalies, cleft paltes, or velopharyngeal incompetence.

The loss of a bit of genetic material from a chromosome or gene.

when a part of a chromosome is missing, or part of the DNA code is missing.

the mutational loss of a nucleotide from a gene.

The loss of a chromosome segment without altering the number of chromosomes.

loss of a fragment of DNA (or of a gene).

A loss of DNA sequence that can range from a single base pair within a gene to a large part of the chromosome.

A type of chromosomal aberration or mutation at the DNA level in which there is loss of part of a chromosome or one or more nucleotides.

Deleting text means erasing it without saving it. Emacs deletes text only when it is expected not to be worth saving (all whitespace, or only one character). The alternative is killing (q.v.). See section Deletion.

Deletion is a music industry term referring to the removal of a record from a label's official catalog.