PPT-X-LINKED RECESSIVE INHERITANCE

XLINKED DOMINANT INHERITANCE XLINKED INHERITANCE dr Retno Sutomo PhD SpA XLINKED RECESSIVE INHERITANCE Segregation of Xlinked recessive allele Carrier mother Segregation of Xlinked recessive allele. This presentation . builds on session 1 exploring patterns of inheritance. Patterns of inheritance. The objectives of this presentation are to:. Understand how genes are inherited. Understand the differences between the inheritance patterns associated with Autosomal dominant, Autosomal recessive, X-linked recessive and chromosomal abnormalities. SBI3U. Mendel Demonstrated. :. Law of Segregation. Law of Independent Assortment. The . alleles. for a gene . segregate independently. . during meiosis. . This applies to alleles located on homologous chromosomes. 1 (6). Sex . linked . inheritance. Dr. . israa. . hussein. . hamzah. email: . esraa_hassan17@yahoo.com. szsh@uomustansiriyah.edu.iq. Reference book. : . genetic (Conceptual-Approach) fourth edition (2012). Stolen and edited from: IMS Dr. Kyle . Stutts. (SHSU) and Brandon . Freel. Objectives. Discuss genetic inheritance.. Investigate principles of inheritance.. Demonstrate how inheritance plays a role in sex-linked genes. Dr. . Aqeel M. . ali. 2019. B. asic . principles of heredity that Mendel discovered from his crosses among pea plants. . A mendelian principle . . sex-linked characteristics determined by . genes located on the sex chromosomes. . 1. A. Background. . 1. Genetics. . 1860’s—. Mendel. . proposed that discrete . inherited . factors . segregate . and assort . independently . during gamete . formation. . 2. Cytology. . Definition . Allelle. is . an alternative form of a . gene . (one member of a pair) that is located at a specific position on a specific . chromosome. . These DNA coding . determine distinct traits that can be passed on from parents to offspring. . University of . Basrah. Al-. zahraa. medical college. . . Human Heredity . Chapters 2, 3, 4, 5. . Lippincott’s . Illustrated Reviews: Cell and Molecular Biology Chapter . For Premedical Student. 1438-1439H. Zoology Department. Lecture 24 : . Genetics. (. The Chromosomal Basis. of Inheritance). Objectives. Section B: Sex Chromosomes.. Some chromosomal systems of sex determination.. Sex Determination. Xy =. . XX= . female. male. Female . karyotype. Male . karyotype. X and Y chromosomes. Who decides. ?. Mom can give X . Dad can give X or Y. Important. Notes. For revision only. Objectives: . Asses Mendel’s laws of inheritance. Understand the . bases. of Mendelian inheritance. Define various patterns of single gene inheritance using family pedigree and Punnett’s squares. 23. pair of chromosomes. A human male, has. 22. similar pairs and one pair consisting of two chromosomes that are dissimilar in size and structure. . The 23 rd pair in both the sexes is called . Human inheritance involves more issues than pea plants. Relatively few traits follow a Mendelian inheritance . pattern, but we cannot . ethically perform test . crosses. Most human traits are polygenic.