A marriage between colour blind and sickle cell anemic female and a no...
Let Xc...denote colour blind geneA"....sickle cell anemic genegenotype of female..XcXc A"A" genotype of male...... XY A"A"as female here will produce only one type of gamete .....which is...XcA".and male ....two types of gamete ....XA"...&....YA"now....cross result will be..1)XcXA"A"2)XcYA"A"it means....all daughter will be carrier of colour blind gene & patient of sickel cell anemia&..... all son will be colour blind & patients of sickel cell anemia
A marriage between colour blind and sickle cell anemic female and a no...
Genetic Outcome of Marriage between Colour Blind and Sickle Cell Anemic Female and Normal Vision for Sickle Cell Anemic Male
- When a colour blind and sickle cell anemic female marries a normal vision for sickle cell anemic male, their offspring will inherit a combination of the parents' genetic traits.
Colour Blindness and Sickle Cell Anemia
- Colour blindness is a sex-linked recessive trait, meaning it is carried on the X chromosome. Females have two X chromosomes, so they need two copies of the gene to be colour blind. Males, on the other hand, only have one X chromosome, so they are more likely to be colour blind if they inherit the gene from their mother.
- Sickle cell anemia is an autosomal recessive disorder, meaning it is not linked to sex chromosomes. Both parents must carry a copy of the defective gene for their child to inherit the condition.
Genetic Possibilities
- The offspring of a colour blind and sickle cell anemic female and a normal vision for sickle cell anemic male will inherit one X chromosome from the mother and one X chromosome and one Y chromosome from the father.
- The children will be carriers of the colour blindness gene, as the female parent is colour blind. However, since the male parent is not colour blind, the children are less likely to exhibit the trait.
- Regarding sickle cell anemia, each child will have a 50% chance of being a carrier of the gene and a 50% chance of not having the disorder, as the male parent is a carrier but does not have the condition.
In conclusion, the offspring of this marriage will be carriers of the colour blindness gene and may or may not be carriers of the sickle cell anemia gene, depending on chance. Regular genetic counseling and testing can provide more accurate information about the children's risk of inheriting these conditions.