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Copyright © 2009 Pearson Education, Inc. Chapter 7 Lecture Concepts of Genetics Tenth Edition Sex Determination and Sex Chromosomes

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Chapter 7 Lecture. Concepts of Genetics Tenth Edition. Sex Determination and Sex Chromosomes. Caster Semenya. 7.1 Life Cycles Depend on Sexual Differentiation 7.1.1 Chlamydomonas. Figure 7.1. Figure 7.2. 7.1 Life Cycles Depend on Sexual Differentiation 7.1.3 Caenorhabditis elegans. - PowerPoint PPT Presentation

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Page 1: Chapter 7 Lecture

Copyright © 2009 Pearson Education, Inc.

Chapter 7 Lecture

Concepts of GeneticsTenth Edition

Sex Determination and Sex Chromosomes

Page 2: Chapter 7 Lecture

Copyright © 2009 Pearson Education, Inc.

Caster Semenya

Page 3: Chapter 7 Lecture

Copyright © 2009 Pearson Education, Inc.

7.1 Life Cycles Depend on Sexual Differentiation

7.1.1 Chlamydomonas

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Copyright © 2009 Pearson Education, Inc. Figure 7.1

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Copyright © 2009 Pearson Education, Inc.

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Copyright © 2009 Pearson Education, Inc. Figure 7.2

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Copyright © 2009 Pearson Education, Inc.

7.1 Life Cycles Depend on Sexual Differentiation

7.1.3 Caenorhabditis elegans

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Copyright © 2009 Pearson Education, Inc. Figure 7.3

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Copyright © 2009 Pearson Education, Inc.

7.2 X and Y Chromosomes Were First Linked to Sex Determination Early in the Twentieth Century

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Copyright © 2009 Pearson Education, Inc. Figure 7.4

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Copyright © 2009 Pearson Education, Inc.

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Copyright © 2009 Pearson Education, Inc.

7.3 The Y Chromosome Determines Maleness in Humans

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Copyright © 2009 Pearson Education, Inc. Figure 7.5

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Copyright © 2009 Pearson Education, Inc. Figure 7.5a

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Copyright © 2009 Pearson Education, Inc. Figure 7.5b

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Copyright © 2009 Pearson Education, Inc.

7.3 The Y Chromosome Determines Maleness in Humans

7.3.1 Klinefelter and Turner Syndromes

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Copyright © 2009 Pearson Education, Inc. Figure 7.6a

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Copyright © 2009 Pearson Education, Inc. Figure 7.6b

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Copyright © 2009 Pearson Education, Inc.

7.3 The Y Chromosome Determines Maleness in Humans

7.3.2 47,XXX Syndrome

7.3.3 47,XYY Condition

7.3.4 Sexual Differentiation in Humans

7.3.5 The Y Chromosome and Male Development

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Copyright © 2009 Pearson Education, Inc. Table 7.1

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Copyright © 2009 Pearson Education, Inc. Figure 7.7

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7.4 The Ratio of Males to Females in Humans Is Not 1.0

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7.5 Dosage Compensation Prevents Excessive Expression of X-Linked Genes in Humans and Other Mammals

7.5.1 Barr Bodies

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Copyright © 2009 Pearson Education, Inc. Figure 7.8

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Copyright © 2009 Pearson Education, Inc. Figure 7.9

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Copyright © 2009 Pearson Education, Inc.

7.5 Dosage Compensation Prevents Excessive Expression of X-Linked Genes in Humans and Other Mammals

7.5.2 The Lyon Hypothesis

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Copyright © 2009 Pearson Education, Inc. Figure 7.10

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Copyright © 2009 Pearson Education, Inc.

7.5 Dosage Compensation Prevents Excessive Expression of X-Linked Genes in Humans and Other Mammals

7.5.3 The Mechanism of Inactivation

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Copyright © 2009 Pearson Education, Inc. Figure 7.11

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Copyright © 2009 Pearson Education, Inc.

7.6 The Ratio of X Chromosomes to Sets of Autosomes Determines Sex in Drosophila

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Copyright © 2009 Pearson Education, Inc. Figure 7.12

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Copyright © 2009 Pearson Education, Inc.

7.6 The Ratio of X Chromosomes to Sets of Autosomes Determines Sex in Drosophila

7.6.1 Dosage Compensation in Drosophila

7.6.2 Drosophila Mosaics

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Copyright © 2009 Pearson Education, Inc. Figure 7.13

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Copyright © 2009 Pearson Education, Inc. Figure 7.14

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Copyright © 2009 Pearson Education, Inc.

7.7 Temperature Variation Controls Sex Determination in Reptiles

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Copyright © 2009 Pearson Education, Inc. Figure 7.15