Hemophilia: a recessive X-linked condition Hypophosphatemia

Hemophilia Inheritance Patterns Hemophilia is a sex -linked recessive disorder The abnormal gene responsible for hemophilia is carried on the X chromosome Males have one X chromosome and one Y chromosome In a male, the presence of the abnormal gene results in the deficiency or absence of factor VIII or factor IX, as

Hemophilia: a recessive X-linked condition Hypophosphatemia

Hemophilia: a recessive X-linked condition Figure 4 23a Hypophosphatemia: a dominant X-linked condition Figure 4 23b (b) X-Iinked dominant: Hypophosphatemia

Bloodline: A Human Genetics Case Study

Hemophilia C: Autosomal recessive Question 6: Using H and h for the dominant and recessive alleles for Hemophilia C, construct a Punnett square on your data sheets to illustrate the parents shown on this page and their predicted offspring Question 7: Mrs Morrison and her parents and sister have normal blood clotting, but she has a

Patterns of Inheritance

most are recessive women are “carriers”, but don’t have the disease a few are dominant 1 Hemophilia recessive gene (women are carriers) blood doesn’t clot bleed to death from a small cut traced to Queen Victoria almost extinct today 2 Red-Green Color Blindness recessive gene (women are carriers) 2/25 white males are red-green

PRINCIPLES OF GENETICS

dominant - a trait (allele) that is expressed irregardless of the second allele recessive - a trait that is only expressed when the second allele is the same (e g short plants are homozygous for the recessive allele) • Dominant – always expressed o Capital letters – N o Homozygous - NN o Heterozygous - Nn • Recessive – prevented by

Non-Mendelian Genetics Notes - Ms Rozemas Classes

Hemophilia is a recessive, x-linked trait The Father is Normal (does not have Hemophilia) = Dominant Variation on the X-Chromosome = XH Y The Mother is Normal (does not have Hemophilia), but is a Carrier (Heterozygous) = XH Xh YouTube Video on Non Mendelian Genetics from College Board XH Y X HX Xh HXH X Y H XHXh XhY H Normal Male = XH Y

THE STEPS WHEN INTERPRETING A PEDIGREE CHART

Determine whether the disorder is dominant or recessive If the disorder is dominant, one of the parents must have the disorder If the disorder is recessive, neither parent has to have the disorder because they can be heterozygous

[PDF] Hemophilia: a recessive X-linked condition Hypophosphatemia

Hemophilia Inheritance Patterns