#6

6. How is the disease diagnosed?

Color blindness was diagnosed by eye examination with slit lamp, tonometry, and visual field examinations

4 Sex-Linked Traits:

1. Normal Color Vision: A: 29, B: 45, C: --, D: 26

2. Red-Green Color-Blind: A: 70, B: --, C: 5, D: --

3. Red Color-blind: A: 70, B: --, C: 5, D: 6

4. Green Color-Blind: A: 70, B: --, C: 5, D: 2

http://waynesword.palomar.edu/images/colorbl3.jpg

"Diagnostic Tests for Color blindness ." WD. 25 Feb. 2009.

#5

What are the chances of a person with this disease passing the disease to their offspring (include possible scenarios)?

- 0% Change with color blindness when both parents was normal vision and not a carrier.
-25%Change with color blindness when dad was normal vision and mom was a carrier.
-50%Change with color blindness when dad has it and mom was a carrier.
-100% Change with color blindness when both parents has it.

#4

In United State, approx 1 in 76 or 1.30% or 3.5 million people in USA.
13 out of 1000 will be color blindness.


"Statistics by Country for Color blindness." WD. 25 Feb. 2009. 1 http://www.wrongdiagnosis.com/c/color_blindness/news.htm.>

#3

If this disease is genetic--what are the possible genotypes of the parents?

+ = Normal Vision (Dominant)
o = Color Blindness (Recessive)

Sex	Color-blind	Normal Vision
Male	XoY	X+Y
Female	XoXo	X+X+ X+Xo

Male has disease= DadX^oY- disease MomX⁺X⁺.X⁺X^o-Carrier or not
Male has disease= DadX⁺Y-doesn't has disease MomX⁺X^{o- Carrier}
Female has disease= DadX^oY- disease MomX⁺X⁺, X⁺X^o- Carrier or not



http://waynesword.palomar.edu/colorbl1.htm

#2

#2
How does a person inherit color blindness genetic disorder?
Color blindness was inherit by males from their mother because Color blindness was a X-linked recessive so its affect just a male and very rare for female so the female was a carrier.That was automatic genetic desorder because you get from your carrier mom or dad.

#1 Generic Counselor

Genetic Counselor
Traditionally, a genetic counselor has a masters degree in genetic counseling and has studied genetic diseases and how those diseases run in families. The genetic counselor can help a person or family understand their risk for genetic conditions (such as cystic fibrosis, cancer, or Down syndrome), educate the person or family about that disease, and assess the risk of passing those diseases on to children.
A genetic counselor will often work with families to identify members who are at risk. If it is appropriate, they will discuss genetic testing, coordinate any testing, interpret test results, and review all additional testing, surveillance, surgical, or research options that are available to members of the family.
"What Is A Genetic Counselor?." What is Genetic Counseling?. 4 Dec. 2003. <http://www.genetichealth.com/Resources_What_Is_Genetic_Counseling.shtml.>