a. To determine: The nature of the rearranged chromosome in each fly and approximate location of breakpoints that define the chromosomal rearrangement. The way to detect the extra nucleotides at the breakpoints. Introduction: The fruit flies with scarlet-colored eyes are heterozygous for chromosome 3. They have a normal gene. They also have a scarlet mutation and rearranged chromosome 3.

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Answer 1

Question

Chapter 12, Problem 7P

Summary Introduction

a.

To determine:

The nature of the rearranged chromosome in each fly and approximate location of breakpoints that define the chromosomal rearrangement. The way to detect the extra nucleotides at the breakpoints.

Introduction:

The fruit flies with scarlet-colored eyes are heterozygous for chromosome 3. They have a normal gene. They also have a scarlet mutation and rearranged chromosome 3.

Summary Introduction

b.

To determine:

Whether one can conclude that at least part of st gene lies within chromosome 3.

Introduction:

The changes in the sequence of nucleotides are called mutations. The agents that cause mutations are known as mutagens. The st gene is the mutagen that causes recessive scarlet mutation in fruit flies.

Summary Introduction

c.

To determine:

Whether one or more protein-coding exons of st gene lie outside chromosome 3.

Introduction:

The eukaryotic mRNA is composed of two regions. These are the coding and non-coding regions. The coding regions are termed as exon while the non-coding parts are called introns. The introns interfere in the synthesis of proteins. They are removed from the mRNA by the method of RNA splicing.

Summary Introduction

d.

To determine:

Whether mapping of st gene reflects a recombination experiment or a complementation test.

Introduction:

The test that is used to detect whether recessive mutations are present within the same gene or in different genes is termed as complementation test. The scientists use a table called the complementation table to study and compare the results of the complementation test.

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Answer 2

Question

Chapter 12, Problem 7P

Summary Introduction

a.

To determine:

The nature of the rearranged chromosome in each fly and approximate location of breakpoints that define the chromosomal rearrangement. The way to detect the extra nucleotides at the breakpoints.

Introduction:

The fruit flies with scarlet-colored eyes are heterozygous for chromosome 3. They have a normal gene. They also have a scarlet mutation and rearranged chromosome 3.

Summary Introduction

b.

To determine:

Whether one can conclude that at least part of st gene lies within chromosome 3.

Introduction:

The changes in the sequence of nucleotides are called mutations. The agents that cause mutations are known as mutagens. The st gene is the mutagen that causes recessive scarlet mutation in fruit flies.

Summary Introduction

c.

To determine:

Whether one or more protein-coding exons of st gene lie outside chromosome 3.

Introduction:

The eukaryotic mRNA is composed of two regions. These are the coding and non-coding regions. The coding regions are termed as exon while the non-coding parts are called introns. The introns interfere in the synthesis of proteins. They are removed from the mRNA by the method of RNA splicing.

Summary Introduction

d.

To determine:

Whether mapping of st gene reflects a recombination experiment or a complementation test.

Introduction:

The test that is used to detect whether recessive mutations are present within the same gene or in different genes is termed as complementation test. The scientists use a table called the complementation table to study and compare the results of the complementation test.

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Answer 3

Question

Chapter 12, Problem 7P

Summary Introduction

a.

To determine:

The nature of the rearranged chromosome in each fly and approximate location of breakpoints that define the chromosomal rearrangement. The way to detect the extra nucleotides at the breakpoints.

Introduction:

The fruit flies with scarlet-colored eyes are heterozygous for chromosome 3. They have a normal gene. They also have a scarlet mutation and rearranged chromosome 3.

Summary Introduction

b.

To determine:

Whether one can conclude that at least part of st gene lies within chromosome 3.

Introduction:

The changes in the sequence of nucleotides are called mutations. The agents that cause mutations are known as mutagens. The st gene is the mutagen that causes recessive scarlet mutation in fruit flies.

Summary Introduction

c.

To determine:

Whether one or more protein-coding exons of st gene lie outside chromosome 3.

Introduction:

The eukaryotic mRNA is composed of two regions. These are the coding and non-coding regions. The coding regions are termed as exon while the non-coding parts are called introns. The introns interfere in the synthesis of proteins. They are removed from the mRNA by the method of RNA splicing.

Summary Introduction

d.

To determine:

Whether mapping of st gene reflects a recombination experiment or a complementation test.

Introduction:

The test that is used to detect whether recessive mutations are present within the same gene or in different genes is termed as complementation test. The scientists use a table called the complementation table to study and compare the results of the complementation test.

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Answer 4

Question

Chapter 12, Problem 7P

Summary Introduction

a.

To determine:

The nature of the rearranged chromosome in each fly and approximate location of breakpoints that define the chromosomal rearrangement. The way to detect the extra nucleotides at the breakpoints.

Introduction:

The fruit flies with scarlet-colored eyes are heterozygous for chromosome 3. They have a normal gene. They also have a scarlet mutation and rearranged chromosome 3.

Summary Introduction

b.

To determine:

Whether one can conclude that at least part of st gene lies within chromosome 3.

Introduction:

The changes in the sequence of nucleotides are called mutations. The agents that cause mutations are known as mutagens. The st gene is the mutagen that causes recessive scarlet mutation in fruit flies.

Summary Introduction

c.

To determine:

Whether one or more protein-coding exons of st gene lie outside chromosome 3.

Introduction:

The eukaryotic mRNA is composed of two regions. These are the coding and non-coding regions. The coding regions are termed as exon while the non-coding parts are called introns. The introns interfere in the synthesis of proteins. They are removed from the mRNA by the method of RNA splicing.

Summary Introduction

d.

To determine:

Whether mapping of st gene reflects a recombination experiment or a complementation test.

Introduction:

The test that is used to detect whether recessive mutations are present within the same gene or in different genes is termed as complementation test. The scientists use a table called the complementation table to study and compare the results of the complementation test.

Expert Solution & Answer

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Answer 5

Chapter 12, Problem 7P

Summary Introduction

a.

To determine:

The nature of the rearranged chromosome in each fly and approximate location of breakpoints that define the chromosomal rearrangement. The way to detect the extra nucleotides at the breakpoints.

Introduction:

The fruit flies with scarlet-colored eyes are heterozygous for chromosome 3. They have a normal gene. They also have a scarlet mutation and rearranged chromosome 3.

Summary Introduction

b.

To determine:

Whether one can conclude that at least part of st gene lies within chromosome 3.

Introduction:

The changes in the sequence of nucleotides are called mutations. The agents that cause mutations are known as mutagens. The st gene is the mutagen that causes recessive scarlet mutation in fruit flies.

Summary Introduction

c.

To determine:

Whether one or more protein-coding exons of st gene lie outside chromosome 3.

Introduction:

The eukaryotic mRNA is composed of two regions. These are the coding and non-coding regions. The coding regions are termed as exon while the non-coding parts are called introns. The introns interfere in the synthesis of proteins. They are removed from the mRNA by the method of RNA splicing.

Summary Introduction

d.

To determine:

Whether mapping of st gene reflects a recombination experiment or a complementation test.

Introduction:

The test that is used to detect whether recessive mutations are present within the same gene or in different genes is termed as complementation test. The scientists use a table called the complementation table to study and compare the results of the complementation test.

Answer 6

Chapter 12, Problem 7P

Summary Introduction

a.

To determine:

The nature of the rearranged chromosome in each fly and approximate location of breakpoints that define the chromosomal rearrangement. The way to detect the extra nucleotides at the breakpoints.

Introduction:

The fruit flies with scarlet-colored eyes are heterozygous for chromosome 3. They have a normal gene. They also have a scarlet mutation and rearranged chromosome 3.

Answer 7

Chapter 12, Problem 7P

Summary Introduction

a.

To determine:

The nature of the rearranged chromosome in each fly and approximate location of breakpoints that define the chromosomal rearrangement. The way to detect the extra nucleotides at the breakpoints.

Introduction:

The fruit flies with scarlet-colored eyes are heterozygous for chromosome 3. They have a normal gene. They also have a scarlet mutation and rearranged chromosome 3.

Answer 8

Summary Introduction

b.

To determine:

Whether one can conclude that at least part of st gene lies within chromosome 3.

Introduction:

The changes in the sequence of nucleotides are called mutations. The agents that cause mutations are known as mutagens. The st gene is the mutagen that causes recessive scarlet mutation in fruit flies.

Answer 9

Summary Introduction

b.

To determine:

Whether one can conclude that at least part of st gene lies within chromosome 3.

Introduction:

The changes in the sequence of nucleotides are called mutations. The agents that cause mutations are known as mutagens. The st gene is the mutagen that causes recessive scarlet mutation in fruit flies.

Answer 10

Summary Introduction

c.

To determine:

Whether one or more protein-coding exons of st gene lie outside chromosome 3.

Introduction:

The eukaryotic mRNA is composed of two regions. These are the coding and non-coding regions. The coding regions are termed as exon while the non-coding parts are called introns. The introns interfere in the synthesis of proteins. They are removed from the mRNA by the method of RNA splicing.

Answer 11

Summary Introduction

c.

To determine:

Whether one or more protein-coding exons of st gene lie outside chromosome 3.

Introduction:

The eukaryotic mRNA is composed of two regions. These are the coding and non-coding regions. The coding regions are termed as exon while the non-coding parts are called introns. The introns interfere in the synthesis of proteins. They are removed from the mRNA by the method of RNA splicing.

Answer 12

Summary Introduction

d.

To determine:

Whether mapping of st gene reflects a recombination experiment or a complementation test.

Introduction:

The test that is used to detect whether recessive mutations are present within the same gene or in different genes is termed as complementation test. The scientists use a table called the complementation table to study and compare the results of the complementation test.

Answer 13

Summary Introduction

d.

To determine:

Whether mapping of st gene reflects a recombination experiment or a complementation test.

Introduction:

The test that is used to detect whether recessive mutations are present within the same gene or in different genes is termed as complementation test. The scientists use a table called the complementation table to study and compare the results of the complementation test.

Answer 14

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Answer 15

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Answer 16

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Answer 17

Ch. 12 - For each of the terms in the left column, choose...Ch. 12 - Prob. 2P Ch. 12 - For each of the following types of chromosomal...Ch. 12 - For the following types of chromosomal...Ch. 12 - One of the X chromosomes in a particular...Ch. 12 - Prob. 6P Ch. 12 - Prob. 7P Ch. 12 - Prob. 8P Ch. 12 - Two wild-type fragments of human genomic DNA from...Ch. 12 - Indicate which of the four major classes of...

Solution Summary: The author explains the nature of the rearranged chromosomes in fruit flies and the way to detect the extra nucleotides at the breakpoints.

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