Dictionary » D » Defects



1. Want or absence of something necessary for completeness or perfection; deficiency; opposed to superfluity. Errors have been corrected, and defects supplied. (Davies)

2. Failing; fault; imperfection, whether physical or moral; blemish; as, a defect in the ear or eye; a defect in timber or iron; a defect of memory or judgment. Trust not yourself; but, your defects to know, make use of every friend any every foe. (Pope) Among boys little tenderness is shown to personal defects. (Macaulay)

Synonym: deficiency, imperfection, blemish. See fault.

Origin: L. Defectus, fr. Deficere, defectum, to desert, fail, be wanting; de- _ facere = to make, do. See Fact, Feat, and cf. Deficit.

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Turner Syndrome and X chromosomes

... and was told there is no such thing. :evil: :shock: :( (yes this is a professor in a university) So why do females with Turner syndrome have such defects? They also have only one X chromosome active, no? What causes this? Thanks so much in advance! Confused Student

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by ofekistit
Sun Nov 17, 2013 3:33 pm
Forum: Human Biology
Topic: Turner Syndrome and X chromosomes
Replies: 1
Views: 878

why is the reproductive system immune to entropy?

... are entirely wrong. That being said, even the reproductive system ages; I think that is one reason why the children of older women have more birth defects and why the fertility of men decreases over time (although most men stay fertile for most of their lives). However, there is a mechanism to ...

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by biohazard
Wed Jun 12, 2013 9:44 am
Forum: General Discussion
Topic: why is the reproductive system immune to entropy?
Replies: 3
Views: 1795

Re: How Genes/expression Determine Organism Shape

... cells on both sides and, therefore, becomes precursor for everything on the inside... I oversimplified it, but that's the general scheme. Any defects in cell to cell signaling (sensing neighboring cells) results in birth defects. As to the other aspect of your question - genetic regulation ...

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by Cat
Mon May 20, 2013 1:41 pm
Forum: Genetics
Topic: How Genes/expression Determine Organism Shape
Replies: 2
Views: 5079

Can you think of an evolutionary reason for this?

... had come up with any other result? If the researchers had been funded by, oh, I don't know, the Institute for the Elimination of Genetic Defects, how long would their funding last after publishing this article? Good science ain't easy, especially if you have an axe to grind or want to ...

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by Rap
Mon Oct 01, 2012 2:44 pm
Forum: Evolution
Topic: Can you think of an evolutionary reason for this?
Replies: 8
Views: 5632


... forum. The question arose like this (paraphrasing): ------------------- A: Inbreeding is unethical because of the high chances of birth defects. Birth defects are caused by similar genes. If you keep a gene that may cause a birth defect in one family, there are no other genes to dillute ...

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by eyesOpened
Sun Sep 09, 2012 10:07 pm
Forum: Genetics
Topic: Inbreeding
Replies: 1
Views: 4108
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