Chapter 10 - Heredity, Book notes and questions
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| Alleles separate before | gametes are formed.
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| Alleles occupy corresponding | loci on homologous chromosomes.
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| A monohybrid cross involves individuals with | different alleles of a given locus.
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| What does a Punnett square predict? | Ratios of the various offspring of a cross.
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| The phenotype of an individual | does not always reveal its genotype.
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| What can a test cross detect? | Heterozygosity
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| A dihybrid cross involves | individuals that have different alleles at two loci.
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| Alleles on nonhomologous chromosomes are | randomly distributed into gametes.
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| When are the rules of probability useful? | In predicting Mendelian inheritance.
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| The rules of probability can be | applied to a variety of calculations.
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| Linked genes do not | assort indepenently.
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| Calculating the frequency of crossing-over reveals | the linear order of linked genes on a chromosome.
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| What is sex determined by? | Sex chromosomes
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| What does the Y chromosome determine? | Male sex in most species of mammals
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| X-linked genes have | unusual inheritance patterns.
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| Dosage compensation equalizes the expression of | X-linked genes in males and females.
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| Dominance is not always | complete.
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| Multiple alleles for a locus | may exist in a population.
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| A single gene may affect | multiple aspects of the phenotype.
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| Alleles of different loci may interact to | produce a phenotype.
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| Polygenes act additively to | produce a phenotype.
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| Why do genes interact with the environment? | To shape phenotype
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