Click here to return to Bryan Ness' Home Page. Terms:
- Wild Type
- Sex-linked Gene
- Linked
- Genetic Recombination
- Parental Type
- Recombinant (Non-parental Type)
- Linkage Map
- Map Unit
- Barr Body
- Nondisjunction
- Aneuploidy
- Trisomy
- Monosomy
- Polyploidy
- Genomic Imprinting
Concepts:
- Know the kind of result you would expect from a cross involving two linked genes both when crossover occurs and when no crossover occurs.
- Be able to identify parental and recombinant gene combinations in dihybrid crosses involving linked genes.
- Know how the percentage of recombination can be used to determine map distances between genes. What effect do double crossovers have on the computed map distance?
- Know how sex is determined in humans and in selected other organisms like insects and birds.
- Know how sex-linked traits (genes) are inherited and how they would appear in a typical pedigree.
- Know about the common sex-linked traits in humans discussed in chapter 14, including something about their symptoms.
- Know the difference between sex-linked and sex influenced traits.
- Know about X-inactivation in females and its genetic significance.
- Understand the various problems that result from aneuploidy and polyploidy.
- Know the genetic causes and basic symptoms of Down syndrome, Patau syndrome, cri du chat syndrome, and the various aneuploid sex chromosome problems mentioned in class. See Table from class.
III. Other Sites:
Click here to return to Bryan Ness' Home Page.
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