10 Genetics 2 2/13 Flashcards
10.1.1 Describe the behavior of the chromosomes in the phases of meiosis.
Meiosis I -Prophase I -Metaphase I -Anaphase I -Telophase I Meiosis II -Prophase II -Metaphase II -Anaphase II -Telophase II
10.1.2 Outline the formation of the chiasmata in the process of crossing over.
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10.1.3 Explain how meiosis results in an effectively infinite genetic variety in gametes through crossing over in prophase I and random orientation in metaphase I.
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10.1.4 State Mendel’s law of independent assortment.
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10.2.5 Explain the relationship between Mendel’s law of independent assortment and meiosis.
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10.2.1 Calculate and predict the genotypic and phenotypic ratio of offspring of dihydrid crosses involving unlinked autosomal genes.
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10.2.2 Distinguish between autosomes and sex chromosomes.
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10.2.3 Explain how crossing over between non-sister chromatids of a homologous pair in prophase I can result in an exchange of alleles.
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10.2.4 Define linkage group.
linkage group: a group of genes whose loci are on the same chromosome
10.2.5 Explain an example of a cross between two linked genes.
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10.2.6 Identify which of the offspring are recombinants in a dihybrid cross involving linked genes.
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10.3.1 Define polygenic inheritance.
polygenic inheritance: the inheritance of a characteristic which is controlled by more than one gene
10.3.2 Explain the polygenic inheritance can contribute to continuous variation using two examples, one of which must be human skin color.
- Obesity:
2. Skin color:
