PPT-lecture (6 ) Sex linked inheritance

Dr Aqeel M ali 2019 B asic principles of heredity that Mendel discovered from his crosses among pea plants A mendelian principle sexlinked characteristics determined by genes located on the sex chromosomes . Humans have 46 chromosomes in every cell.. 2 of these chromosomes make us male or female.. Female: XX Male: XY. The Sex Chromosomes:. Has information for male traits.. Few other genes.. The Y chromosome. Kyle . Stutts. . Sam . houston. state . university. Sex-Linked Characteristics. Objectives. Students will be able to:. Comprehend how inheritance plays a role in sex-linked genes. Explain the difference between sex- linked, limited, and influenced inheritance. Complex Inheritance Patterns:. Autosomal v. X-Linked. Pedigree. Family Tree. Genealogy. Inheritance . Diagram. Relates . parents and offspring for numerous generations. Shows relationships between parents, children, grandchildren…. Chapter . 7 Extending . Mendelian. Genetics . Section 7-1 Chromosomes and Phenotype. KEY CONCEPT . The chromosomes on which genes are located can affect the expression of traits.. MAIN IDEAS . • Two copies of each .  . Studying genetics . can be accomplished in part by . investigating the history of discoveries. that have lead to our . understanding of DNA and its role in gene expression and biological inheritance. 11.1 Basic Patterns of Human Inheritance. 11.2 Complex Patterns of Inheritance. EQ: What is the difference between sex linked genes and genes found on autosomal chromosomes? . Chromosomes and Phenotype. X-LINKED DOMINANT INHERITANCE. X-LINKED INHERITANCE. dr. . Retno. . Sutomo. , Ph.D., . Sp.A. .. X-LINKED RECESSIVE INHERITANCE. Segregation of X-linked recessive allele. Carrier mother. Segregation of X-linked recessive allele. (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. 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. . Like father, like son. Objectives. 2. Introducing inheritance through creating subclasses. Improve code reusability. Allowing overriding to replace the implementation of an inherited method. [CS1020 Lecture . . Sex determination. Sex chromosome is determined at . fertilization time. .. Early stage fetus contains two . ducts system. :. Wolfian. (male).. Mullerian. (female).. Sexual difference starts in the . 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.