A color-blind woman with Turner syndrome (XO) has a father who is color blind. Given that the gene for the color-blind condition is recessive and X-linked, provide a likely explanation for the origin of the color-blind and cytogenetic conditions in the
woman.
A) no abnormalities had to occur to produce this daughter
B) nondisjunction in the father in meiosis I or II
C) nondisjunction in the father at meiosis I
D) nondisjunction in the mother in meiosis I and in the father in meiosis II
E) nondisjunction in the other in meiosis I or II
Answer: E
You might also like to view...
Which of the following plants are widely planted in
cities because of their resistance to insect predators, air pollution, and disease? a. horsetails b. ginkgos c. pines d. spruces e. junipers
Mutations in myosin V cause a human disorder known as ________, involving partial albinism and neurological defects
Fill in the blank with correct word.
Which of the following would demonstrate a point mutation to the following DNA sequence: CAT GAT ATC?
A. GUACUAUAG B. AUGCUAUAG C. CATCATATC D. GUAAUCAUG
We should care about loss in biodiversity in the populations of other species because of
A) biophilia. B) potential loss of medicines and other products yet undiscovered from threatened species. C) potential loss of genes, some of which may code for proteins useful to humans. D) the risk to global ecological stability. E) All of the options are correct.