[DOC] [TLE] Facts About Color Blindness | National Eye Institute [PAR] These color-detecting molecules are located in cone-shaped cells within the ... 
Red-green color blindness is the most common, followed by blue-yellow ... 
Because females have two X chromosomes, the effect of a mutation on one X ... 
When an affected parent with one dominant gene mutation has a child, there is a 
1 in 2... [DOC] [TLE] Inherited Colour Vision Deficiency  Colour Blind Awareness [PAR] Colour blindness is a common hereditary (inherited) condition which means it is 
usually ... Chromosomes are structures which contain genes  these contain the 
... The 23rd chromosome is made up of two parts  either two X chromosomes if 
... If a woman has only one colour blind 'gene' she is known as a 'carrier' but she... [DOC] [TLE] Color blind genetics - Understanding Genetics - The Tech Museum ... [PAR] Sep 12, 2013 ... Your mom had a 50% chance of inheriting the colorblind gene from her ... And if 
your uncle married one of those rare color blind women, then all of ... If these two 
have a color blind son, then we know what each of ... First off, since brother 2 and 
sister 2 don't have a gray chromosome, they are not color blind. [DOC] [TLE] Genetics: MedlinePlus Medical Encyclopedia [PAR] Jan 25, 2016 ... Have only a minor effect, such as color blindness. ... These consist of 2 
chromosomes that determine what sex they are ... Males are "46,XY" and females 
are "46,XX. ... In the case of a dominant disorder, if one abnormal gene is 
inherited ... Because most recessive disorders are rare, a child is at increased... [DOC] [TLE] Solutions to Chapter 4 Applications Problems [PAR] Males must be considered heterogametic because they produce two different ... 
Instead of a sex chromosome that differs between males and females, alleles at 
... Tortoiseshell cats have two different alleles of an X-linked gene: X+ ..... His 
mother and father have normal color vision, but his maternal grandfather is color-
blind. [DOC] [TLE] Biological Basis of Heredity: Sex Linked Genes [PAR] These not only carry the genes that determine male and female traits but ... while 
women have two X's. Since only men inherit Y chromosomes, they are ... X 
chromosome is often masked in their phenotype by a dominant normal allele on 
the other. ... and the most common human genetic disorder, red-green color 
blindness. [DOC] [TLE] Color Blind Chart - Wayne's Word [PAR] Color Blindness In Humans: An X-Linked Trait ... People with color blindness 
would have difficulties in distinguishing all of these shades of color. ... is more 
common in men because they have only one X chromosome. ... Women have two 
X chromosomes and therefore can be homozygous or ... + = Normal Vision (
Dominant) [DOC] [TLE] Color blindness - Wikipedia [PAR] Color blindness, also known as color vision deficiency, is the decreased ability to 
see color or ... As females have two X chromosomes, a defect in one is typically 
compensated ... Red-green color blindness is the most common form, followed by 
.... These individuals normally know they have a color vision problem and it can... [DOC] [TLE] Sex-linked Genetic Disorders | BIOL 011 - Courses [PAR] Because a female has two X chromosomes, you see the same pattern of 
inheritance ... that are sex-linked, determined by genes carried on the X 
chromosome. ... Red-green color blindness is also caused by mutation in genes 
that occur on the X ... These children will have the genotype RY and will have 
normal color vision. [DOC] [TLE] Pedigree Analysis [PAR] These three pairs have mated in this tree: I-1 & I-2, II-2 & II-3, III-2 & III-3 ... 
Pedigrees are interesting because they can be used to do some detective work ... 
Humans have 2 alleles of all their autosomal genes; females have 2 alleles of X- 
... is dominant or recessive and whether it is linked to an autosomal chromosome, 
or. [DOC] [TLE] Sex Linkage - Genetics - University of Utah [PAR] These genes

Question: Colorblindness is rare in women as they have 2 of these dominant gene-carrying chromosomes
Answer: X