The relationship between sex chromosomes and sex determination. Introduction: All eukaryotic organisms contain chromosomes, and the number of chromosomes varies in different organisms. By studying the fruit flies Drosophila melanogaster , T. H. Morgan correlated sex chromosomes with the inheritance of a trait. During meiosis, a female Drosophila generates only X-bearing gametes, however, a male fly generates both Y-bearing and X-bearing gametes. A female fly (XX zygote) develops when an X sperm is involved in the fertilization and a male fly (XY zygote) develops when a Y sperm is involved in the fertilization.

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Chapter 13.2, Problem 1LO

Summary Introduction

To explain: The relationship between sex chromosomes and sex determination.

Introduction: All eukaryotic organisms contain chromosomes, and the number of chromosomes varies in different organisms. By studying the fruit flies Drosophila melanogaster, T. H. Morgan correlated sex chromosomes with the inheritance of a trait. During meiosis, a female Drosophila generates only X-bearing gametes, however, a male fly generates both Y-bearing and X-bearing gametes. A female fly (XX zygote) develops when an X sperm is involved in the fertilization and a male fly (XY zygote) develops when a Y sperm is involved in the fertilization.

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Chapter 13.2, Problem 1LO

Summary Introduction

To explain: The relationship between sex chromosomes and sex determination.

Introduction: All eukaryotic organisms contain chromosomes, and the number of chromosomes varies in different organisms. By studying the fruit flies Drosophila melanogaster, T. H. Morgan correlated sex chromosomes with the inheritance of a trait. During meiosis, a female Drosophila generates only X-bearing gametes, however, a male fly generates both Y-bearing and X-bearing gametes. A female fly (XX zygote) develops when an X sperm is involved in the fertilization and a male fly (XY zygote) develops when a Y sperm is involved in the fertilization.

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Chapter 13.2, Problem 1LO

Summary Introduction

To explain: The relationship between sex chromosomes and sex determination.

Introduction: All eukaryotic organisms contain chromosomes, and the number of chromosomes varies in different organisms. By studying the fruit flies Drosophila melanogaster, T. H. Morgan correlated sex chromosomes with the inheritance of a trait. During meiosis, a female Drosophila generates only X-bearing gametes, however, a male fly generates both Y-bearing and X-bearing gametes. A female fly (XX zygote) develops when an X sperm is involved in the fertilization and a male fly (XY zygote) develops when a Y sperm is involved in the fertilization.

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Chapter 13.2, Problem 1LO

Summary Introduction

To explain: The relationship between sex chromosomes and sex determination.

Introduction: All eukaryotic organisms contain chromosomes, and the number of chromosomes varies in different organisms. By studying the fruit flies Drosophila melanogaster, T. H. Morgan correlated sex chromosomes with the inheritance of a trait. During meiosis, a female Drosophila generates only X-bearing gametes, however, a male fly generates both Y-bearing and X-bearing gametes. A female fly (XX zygote) develops when an X sperm is involved in the fertilization and a male fly (XY zygote) develops when a Y sperm is involved in the fertilization.

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Answer 5

Chapter 13.2, Problem 1LO

Summary Introduction

To explain: The relationship between sex chromosomes and sex determination.

Introduction: All eukaryotic organisms contain chromosomes, and the number of chromosomes varies in different organisms. By studying the fruit flies Drosophila melanogaster, T. H. Morgan correlated sex chromosomes with the inheritance of a trait. During meiosis, a female Drosophila generates only X-bearing gametes, however, a male fly generates both Y-bearing and X-bearing gametes. A female fly (XX zygote) develops when an X sperm is involved in the fertilization and a male fly (XY zygote) develops when a Y sperm is involved in the fertilization.

Answer 6

Chapter 13.2, Problem 1LO

Summary Introduction

To explain: The relationship between sex chromosomes and sex determination.

Introduction: All eukaryotic organisms contain chromosomes, and the number of chromosomes varies in different organisms. By studying the fruit flies Drosophila melanogaster, T. H. Morgan correlated sex chromosomes with the inheritance of a trait. During meiosis, a female Drosophila generates only X-bearing gametes, however, a male fly generates both Y-bearing and X-bearing gametes. A female fly (XX zygote) develops when an X sperm is involved in the fertilization and a male fly (XY zygote) develops when a Y sperm is involved in the fertilization.

Answer 7

Chapter 13.2, Problem 1LO

Summary Introduction

To explain: The relationship between sex chromosomes and sex determination.

Introduction: All eukaryotic organisms contain chromosomes, and the number of chromosomes varies in different organisms. By studying the fruit flies Drosophila melanogaster, T. H. Morgan correlated sex chromosomes with the inheritance of a trait. During meiosis, a female Drosophila generates only X-bearing gametes, however, a male fly generates both Y-bearing and X-bearing gametes. A female fly (XX zygote) develops when an X sperm is involved in the fertilization and a male fly (XY zygote) develops when a Y sperm is involved in the fertilization.

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Ch. 13.1 - Describe sex-linked inheritance in fruit flies.Ch. 13.1 - Prob. 2LO Ch. 13.2 - Prob. 1LO Ch. 13.2 - Explain the genetic consequences of dosage...Ch. 13.3 - Prob. 1LO Ch. 13.4 - Prob. 1LO Ch. 13.4 - Explain the relationship between frequency of...Ch. 13.4 - Prob. 3LO Ch. 13.5 - Prob. 1LO Ch. 13.5 - Prob. 2LO

Solution Summary: The author explains the relationship between sex chromosomes and the inheritance of a trait in eukaryotic organisms.

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