Identify and describe an X-linked disorder, congenital stationary night blindness (CSNB1A). Explain how this trait was...
Identify and describe an X-linked disorder, congenital stationary night blindness (CSNB1A). Explain how this trait was discovered, Discuss preventions/treatments for this trait due to its location on the X chromosome.
Homework Answers
Answer :)
X-linked congenital stationary night blindness is the improper functioning of the retina. People having this condition usually have night blindness. They also get other vision problems, containing reduced acuity, high myopia, nystagmus, and strabismus. Color vision is usually not affected by this disorder.
Firstly, Miyake et al. in 1986 found the congenital stationary night blindness in some families having hyperopia and myopia. They defined the two types of X-linked congenital stationary night blindness: 'complete' and 'incomplete’.
There are no preventative measures and treatments for this disease.
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Identify and describe an X-linked disorder, congenital
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Red-green color blindness is a human X-linked recessive disorder. The normal allele, XB, is dominant to the mutant allele, Xb. ill has normal color vision, but her father is color blind. Jill marries Tom, who also has normal color vision. Jill and Tom have a daughter who has Turner syndrome and is color blind How and from whom did the daughter inherit color blindness? O O O O O an ovum carrying X3 followed by fertilization by sperm from a...
need help with 1 and 2 please.
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regio he home or Notch he he X chror on mutation is a deletion on the X chromosome of Drosophila melanogaster omale flies heterozygous for Notch have an indentation on the margins of the wing och is lethal in the homozvous and hemiyvous conditions. The Notch deletion ne region of the X chromosome that contains the locus for white eyes, an X- u recessive trait. Give the phenotypes and proportions of progeny produced in the following crosses: (a) A red-eyed,...
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