### imperfection | defect | congenital abnormality:

Colour blindness
* Look for the hidden numbers on a colour vision test.
* Most colour blindness is heritable , usually as simple Mendelian inheritance.
* can express itself in many variations and degrees of severity.
* is the inability to distinguish colours.
* results from a lack of one or two of the receptors.
+ Color blindness: Diseases and disorders of the eye :: Genetic disorders
  * Most colour blindness is heritable, usually as simple Mendelian inheritance. Most color blindness is permanent, but some conditions can also lead to temporary color blindness. During certain kinds of migraine, some people are unable to tell the difference between certain colors. As of 2009, there is no treatment or cure for permanent color blindness.

Macroglossia
* causes a variety of signs and symptoms.
* is tongue enlargement that leads to functional and cosmetic problems.
* means large tongue.

Meningocele
* are lees likely to cause as great a problem.
* congenital abnormality

Congenital defect
* are abnormalities of structure or function present at birth
  - an example of the definition of anomaly
* can develop in any part of the heart.

Crystal defect
* have a profound effect on macroscopic properties of materials.
* seem to cause the popcorn noise when the diode is substantially depleted.

Genetic defect
* Some genetic defects cause death.
* Some genetic defects cause excessive mucus production
* Some genetic defects interfere with metabolism
  - sulphur metabolism
* Some genetic defects relate to cousin marriages
* can occur in any breed and can affect any system in the body.

### imperfection | defect:

Genital wart
* are a very common viral sexually transmitted disease
  - bumps of various sizes on the skin of the genitals
  - different than the warts found on the hands or feet
  - diseases
  - easier to treat in the male than the female
  - extremely common, but can be treated and cured
  - flat, hard, and painless when they first appear
  - growths on the skin in the genital area
  - hard to treat and some are associated with cancer of the cervix
  - highly contagious and spread by sexual or intimate bodily contact
  - illnesses
  - most likely to be transmitted when visible
  - now the most common infectious disease in our nation
  - perhaps the most difficult to treat
  - small flesh-colored or pink bumps that appear on the genitals or anus
  - soft warts that grow in and around the entrance of the vagina, anus and penis
  - tiny growths that appear in the genital and anal areas of the body
  - unpleasant but painless and can be treated quite easily
  - usually painless, but sometimes can cause pain, itching or bleeding
  - very common and are increasing in incidence
* grow large if located in an area kept moist by urethral discharge
  - more rapidly during pregnancy or when other infections are present
* result from a virus, which is incurable but intermittently active and inactive.
* seem to be very contagious.
* start as small bumps that appear in the genital area or the anus.
* tend to get bigger during pregnancy.

Heart defect
* appear to be very dependent on the specific genes involved in the deletion.
* are common and the babies are floppy, with little muscle tone
  - often present as well
  - serious problems
* are the leading cause of birth defect related deaths
  - most common birth defect
* begin in the early part of pregnancy when the heart is forming.
* come in all types, from minor to major.

Manufacturing defect
* occur during the manufacture of a product.
* tend to be the single largest cause of computer hardware failure.