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Sagot :
I don't know what letter you are using for the genotype so ill just use A.
Parents: Aa , Aa
Son: aa
The genotype of the parents may be XᵇXᵇ for the mother , XᵇY for the father and XᵇY for son.
here, Xᵇ is the gene responsible for the disease Color blindness.
What is genotype?
The term genotype refers to an organism's whole complement of genes i.e. it describes its genetic composition. In a more restricted meaning, the phrase can refer to the alleles, or alternative forms of a gene, that an organism carries.
What is Color blindness?
Color blindness is one of the most common genetic (inherited) diseases in the world, meaning it is handed down from your parents.
Only the X chromosome has the 'gene' that causes (inherited, red and green varieties of) color blindness. So, for a male to be colorblind, the gene for color blindness simply needs to be present on his X chromosome.
Color blindness 'genes' must be present on both X chromosomes for a female to be color blind.
The 23rd chromosome, often known as the heterotypical chromosome since it defines your gender, is passed down from mother to son and causes red/green color blindness.
Chromosomes are structures that carry genes, which provide instructions for cell, tissue, and organ development.
Color blindness means that the instructions for the development of your cone cells differ from those for those with 'normal' color vision.
This can lead to one cone cell type being missing or less sensitive to light, resulting in inaccurate information being sent from your cone cells to your brain via 'faulty' electrical signals.
so , The genotype type of the parents may be XᵇXᵇ for the mother , XᵇY for the father and XᵇY for son.
To know more about color blindness here
https://brainly.com/question/24228171
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