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Name: _______________________________________________ Date: __________ Period: _________ Honors Biology: Chromosomal Basis of Inheritance and Sex-Linked Genes (9.16-9.21) Guided Reading How can patterns of inheritance be explained using a knowledge of chromosomes? 1. On your own…Read Sections 9.16-9.21 2. Define the following terms: Chromosome Theory of Inheritance: Linked genes: Recombination frequency: Sex chromosomes: Sex-linked gene: 3. Looking at figure 9.16 on p. 171, How can Mendel’s Laws be explained using a knowledge of chromosomes? 4. Why do “linked genes” NOT follow Mendel’s Law of Independent Assortment? 5. What are recombinant gametes? How are they related to linked genes? 6. How can crossing over be used as a way to “map” genes? 7. In humans, what determines the sex of an offspring? Relate this to gametes. 8. How is a sex-linked gene different from a linked gene? How are sex-linked alleles represented? 9. In terms of sex-linked genes, what doe it mean to be a “carrier”? 10. If a female fruit fly has white eyes, what must the parents’ genotypes and phenotypes be? (Use a Punnett Square)