need help solving this : In humans, the X chromosome is large in comparison to the Y chromosome. The X chromosome carries information for many traits that aren't related to the sex of the individual. Alleles carried only by the X chromosome are said to be X-linked (or some-times, sex-linked). Some of the alleles on the tiny Y chromosome appear to have no counterparts on X. These Y-linked alleles code for traits that are found only in males. Among the X-linked traits are a number of recessive genetic disorders. One of these is hemophilia, the inability to produce proteins necessary for blood clotting. Hemophiliacs can bleed to death from relatively
need help solving this : In humans, the X chromosome is large in comparison to the Y chromosome. The X chromosome carries information for many traits that aren't related to the sex of the individual. Alleles carried only by the X chromosome are said to be X-linked (or some-times, sex-linked). Some of the alleles on the tiny Y chromosome appear to have no counterparts on X. These Y-linked alleles code for traits that are found only in males. Among the X-linked traits are a number of recessive genetic disorders. One of these is hemophilia, the inability to produce proteins necessary for blood clotting. Hemophiliacs can bleed to death from relatively
Comprehensive Medical Assisting: Administrative and Clinical Competencies (MindTap Course List)
6th Edition
ISBN:9781305964792
Author:Wilburta Q. Lindh, Carol D. Tamparo, Barbara M. Dahl, Julie Morris, Cindy Correa
Publisher:Wilburta Q. Lindh, Carol D. Tamparo, Barbara M. Dahl, Julie Morris, Cindy Correa
Chapter43: Specialty Laboratory Tests
Section: Chapter Questions
Problem 43.2CS
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In humans, the X chromosome is large in comparison to the Y chromosome. The X chromosome carries information for many traits that aren't related to the sex of the individual. Alleles carried only by the X chromosome are said to be X-linked (or some-times, sex-linked).
Some of the alleles on the tiny Y chromosome appear to have no counterparts on X.
These Y-linked alleles code for traits that are found only in males.
Among the X-linked traits are a number of recessive genetic disorders. One of these is hemophilia, the inability to produce proteins necessary for blood clotting. Hemophiliacs can bleed to death from relatively minor cuts or bruises. Historical records dating back thousands of years mention the inheritance pattern of hemophilia. Among the ancient Hebrews, sons born to women with a family history of hemophilia were excused from circumcision.
Hemophilia was common during the 1800s in the royal families of Europe, whose members often intermarried. Queen Victoria of England was a carrier of the trait. She had one X chromosome with the allele for normal blood clotting (X) and the other with the defective allele (Xh). Because she did have one normal dominant allele, her blood clotted normally.
Her husband, Prince Albert, was completely normal for this trait. He had one normal allele on the X chromosome (X) and a Y chromosome with no allele related to blood clotting (Y°).
Eighteen of Queen Victoria's 69 descendants were carrier females or hemophiliac males. Crown Prince Alexis of Russia was one of these hemophiliac descendants. His affliction indirectly contributed to the overthrow of the monarchy in Russia.
Complete this Punnett square for the marriage of Victoria and Albert.
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