subject
Biology, 22.07.2021 21:30 makikorising1226

The most common form of hemophilia is a defect in blood clotting factor VIII, which is caused by a mutant form of a gene on the X chromosome. Boys who inherit that mutation from their mother suffer from uncontrolled bleeding. Girls carrying one copy of this mutation have near normal blood clotting. Uncommonly, a girl is born with hemophilia even though both parents have normal phenotypes. Which of the statements might explain hemophilia in a girl born to parents with normal blood clotting phenotypes? A. A non-disjunction event in sperm production resulted in her receiving X and Y chromosomes from her father and an X from her mother; she is XXY.
B. Non-disjunction during sperm formation resulted in her receiving no sex chromosome from her father and an X chromosome from her mother; she is XO.
C. Non-disjunction during egg formation resulted in her receiving two X chromosomes from her mother and an X chromosome from her father; she is XXX.
D. Non-disjunction during egg formation resulted in her receiving no X chromosome from her mother but an X from her father; she is XO.

ansver
Answers: 2

Other questions on the subject: Biology

image
Biology, 22.06.2019 11:00, Carlyalexis641
In pea plants, yellow seed color (y) is dominant and green seed color (y) is recessive. based on the punnett squares, what are the chances that the offspring in the second generation will have green seeds?
Answers: 2
image
Biology, 22.06.2019 13:50, arrichardson787
The fluid mosaic model of the membrane proposed that membranes
Answers: 1
image
Biology, 22.06.2019 15:50, jenny3661
Polar zones are cold and tend to be dry because of a pressure system of cold. low high
Answers: 1
image
Biology, 22.06.2019 17:20, kcarstensen59070
If you were given a map of the sensory cortex in the postcentral gyrus of the cerebrum, do you think the map would have more “space” devoted to the regions of the body that have the highest density of sensory receptors, or the regions of the body that have the lowest density of sensory receptors? explain.
Answers: 2
You know the right answer?
The most common form of hemophilia is a defect in blood clotting factor VIII, which is caused by a m...

Questions in other subjects:

Konu
Mathematics, 05.01.2020 08:31