Colour blindness: Difference between revisions
Created page with "The type of colour blindness are blue, green and red, which is caused by a defect in cone cells. The most usual form is red-green colour blindness (also known as D..." |
m Added a link |
||
| (2 intermediate revisions by 2 users not shown) | |||
| Line 1: | Line 1: | ||
The type of colour blindness are blue, green and red, which is caused by a defect in [[Cone cells|cone cells]]. The most usual form is red-green colour blindness (also known as Deuteranopia) affecting 7 | The type of colour blindness are blue, green and red, which is caused by a defect in [[Cone cells|cone cells]]. The most usual form is red-green colour blindness (also known as Deuteranopia) affecting 7-10% of males. Red-green colour blindness is an [[X-linked recessive disorder|X-linked recessive disorder]] in which both men and women can get the disease, although it is much more common in males. In order for this disease to occur it requires an affected male and either a [[Homozygous|homozygous recessive]] or [[Heterozygous|heterozygous mother]]. Affected males have normal sons but carrier daughters (or affected daughters depending on the mothers [[Genotype|genotype]]) proving that the disorder is inherited by the [[X chromosome|X chromosome]]. Affected heterozygous mothers will pass condition to 50% of daughters and sons. Son's are more likely to [[Inheritance|inherit]] the disease as the recessive [[Allele|allele]] cannot be masked<ref>Reference: Alberts et al (2008) The Molceular Biology of The Cell, 5th Edition. New York: Garland Science.</ref>. | ||
=== References === | |||
<references /> | |||
Latest revision as of 14:17, 2 December 2018
The type of colour blindness are blue, green and red, which is caused by a defect in cone cells. The most usual form is red-green colour blindness (also known as Deuteranopia) affecting 7-10% of males. Red-green colour blindness is an X-linked recessive disorder in which both men and women can get the disease, although it is much more common in males. In order for this disease to occur it requires an affected male and either a homozygous recessive or heterozygous mother. Affected males have normal sons but carrier daughters (or affected daughters depending on the mothers genotype) proving that the disorder is inherited by the X chromosome. Affected heterozygous mothers will pass condition to 50% of daughters and sons. Son's are more likely to inherit the disease as the recessive allele cannot be masked[1].
References
- ↑ Reference: Alberts et al (2008) The Molceular Biology of The Cell, 5th Edition. New York: Garland Science.