deletion

[de-le´shun]

in genetics, loss of genetic material from a chromosome.

Examples of large-scale chromosomal deletions: A, terminal; B, interstitial. From Dorland's, 2000.

de·le·tion

(dĕ-lē'shŭn),

In genetics, any spontaneous elimination of part of the normal genetic complement, whether cytogenetically visible (chromosomal deletion) or found by molecular techniques.

[L. deletio, destruction]

Farlex Partner Medical Dictionary © Farlex 2012

deletion

(dĭ-lē′shən)

1. The act of deleting; removal by striking out.

2. Material, such as a word or passage, that has been removed from a body of written or printed matter.

3. Genetics The loss, as through mutation, of one or more nucleotides from a chromosome.

de·le·tion

(dĕ-lē'shŭn)

genetics Any spontaneous elimination of part of the normal genetic complement, whether cytogenetically visible (chromosomal deletion) or inferred from phenotypic evidence (point deletion).

[L. deletio, destruction]

Medical Dictionary for the Health Professions and Nursing © Farlex 2012

deletion

In genetics, the removal of a segment of DNA with joining up of the cut ends. as in the loss of a segment of a chromosome. Deletion of a single BASE PAIR is one of the kinds of point mutation. Deletion of a base pair triplet (codon) will result in a protein with a missing amino acid.

Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

Deletion

The absence of genetic material that is normally found in a chromosome. Often, the genetic material is missing due to an error in replication of an egg or sperm cell.

Mentioned in: Cri Du Chat Syndrome, DiGeorge Syndrome, Prader-Willi Syndrome, Pseudoxanthoma Elasticum

Mentioned in

References in periodicals archive

He said it was impossible that someone deleted those files expecting them never to be retrieved.

'Luy's files remain intact'

He said he was not sure that the woman who reviewed the report let it be automatically deleted. (Proceeding)

Deletion theory on Huntley sex file

Acquisition targets should include all "states" of data--active files, as well as hidden or deleted files, and backup files.

Computer Sleuth: Beating down the evidence trail with computer forensics

Obviously, having data only partially deleted is of no consequence to anyone who is trying to get rid of amorous e-mail, for example.

A Clean Slate

After 30 days, uncoded messages are deleted automatically.

Electronic Lost And Found

Jirtle notes that at least one copy of the receptor gene is often deleted in other cancers, including ovarian cancer.

Genetic flaw causes double trouble

Singh alleged that it is because of the fact that AAP is "working for re-entering the lakhs of voters names deleted from the electoral roll of Delhi".

Delhi Police at the behest of BJP is harassing AAP leaders: Sanjay Singh tells EC

According to TechCrunch, a security researcher named Karan Saini has discovered that the microblogging platform apparently holds onto deleted messages for years after their deletion by one or even both parties.

Twitter found storing deleted direct messages even after years

Who Deleted Me will track your Facebook friends and notify the user if one of them goes awry.

New app allows people to see who has deleted them from Facebook; The app - entitled Who Deleted Me - takes stock of your current friends list, but it cannot provide backdated information

In a landmark ruling, the Ohio Supreme Court decided that electronic messages that address government business--including deleted e-mails--are records protected by the state's open records laws, whether they are stored in a public or private computer.

Ohio Supreme Court ruling: e-mails are public records

Some regulations define retention periods that allow data to be deleted after expiration and some go further by actually mandating record destruction and specifying the nature of destruction.

Optical storage remains a top choice for compliance

While most users would not be able to resurrect the "deleted" file, anyone with advanced technical knowledge or the right software could do it easily.

Erase old files safely and completely