gene is usually zed to the clotting when a blood emophilia A, occurs the gene will express women. Parents Carrler female Normal male man knows she a hemophiliac Use

Human Heredity: Principles and Issues (MindTap Course List)
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Chapter6: Cytogenetics: Karyotypes And Chromosome Aberrations
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Problem 14QP: Variations in Chromosome NumberAneuploidy Describe the process of nondisjunction and explain when it...
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Sex linkage is a special case of linkage occurring when a
nene is located on a sex chromosome (usually the X). The
ult is that the character encoded by the gene is usually
in males, e.g. hemophilia. Women who have ne recussive
alleles on their chromosomes are sald to be carrlers.
Hemophilia is an inherited genetic disorder linked to the
Y-chromosome that results in ineffective blood clotting when a blood
vessel is damaged. The most common type, hemophilia A, occurs
ntin 5000 male births. Any male who carries the gene will express
the phenotype. Hemophilia is extremely rare in women.
Parents
Carrier
female
Normal
male
A couple wish to have children. The woman knows she a
carrier for hemophilia. The man is not a hemophiliac. Use
the notation Xh for hemophilia and XH for the dominant
allele to complete the diagram on the right including the
parent genotypes, gametes and possible fertilizations.
Write the genotypes and phenotypes in the table below.
Gametes
Genotypes
Phenotypes
Possible
fertilizations
Male
children
Paternal gametes
Paternal gametes
Female
children
00
A second couple also wish to have children. The
woman knows her maternal grandfather was a
hemophiliac, but neither her mother or father were.
Determine the probability she is a carrier (XHxh) Use
the Punnett squares, right, to help you:
Paternal gametes
Paternal gametes
Maternal gametes
00
Maternal gametes
Transcribed Image Text:Sex linkage is a special case of linkage occurring when a nene is located on a sex chromosome (usually the X). The ult is that the character encoded by the gene is usually in males, e.g. hemophilia. Women who have ne recussive alleles on their chromosomes are sald to be carrlers. Hemophilia is an inherited genetic disorder linked to the Y-chromosome that results in ineffective blood clotting when a blood vessel is damaged. The most common type, hemophilia A, occurs ntin 5000 male births. Any male who carries the gene will express the phenotype. Hemophilia is extremely rare in women. Parents Carrier female Normal male A couple wish to have children. The woman knows she a carrier for hemophilia. The man is not a hemophiliac. Use the notation Xh for hemophilia and XH for the dominant allele to complete the diagram on the right including the parent genotypes, gametes and possible fertilizations. Write the genotypes and phenotypes in the table below. Gametes Genotypes Phenotypes Possible fertilizations Male children Paternal gametes Paternal gametes Female children 00 A second couple also wish to have children. The woman knows her maternal grandfather was a hemophiliac, but neither her mother or father were. Determine the probability she is a carrier (XHxh) Use the Punnett squares, right, to help you: Paternal gametes Paternal gametes Maternal gametes 00 Maternal gametes
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