a. Dominant or recessive in each mutation in the given data. b. Define gene symbols and genotypes of parents from the given data. Cross Number of progeny Straight wings-long bristles Straight wings-short bristles Curled wings-long bristles Curled wings-short bristles 1. Straight-short X straight-short 30 90 10 30 2. Straight-long X straight-long 120 0 40 0 3. Curled-long X straight-short 40 40 40 40 4. Straight-short X straight-short 40 120 0 0 5. Curled-short X straight-short 20 60 20 60 Introduction: Drosophila is used for the study of molecular and genetic functions since decades. in the given study, mutant type is crossed with wild type to obtain various combinations. Wild type characters of Drosophila are straight wings and long bristles, and mutant type characters are curled wings, and short bristles.

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Answer 1

Question

Chapter 3, Problem 26PDQ

Summary Introduction

To analyze:

a. Dominant or recessive in each mutation in the given data.

b. Define gene symbols and genotypes of parents from the given data.

Cross Number of progeny

Straight wings-long bristles Straight wings-short bristles Curled wings-long bristles Curled wings-short bristles

1. Straight-short X straight-short 30 90 10 30

2. Straight-long X straight-long 120 0 40 0

3. Curled-long X straight-short 40 40 40 40

4. Straight-short X straight-short 40 120 0 0

5. Curled-short X straight-short 20 60 20 60

Introduction:

Drosophila is used for the study of molecular and genetic functions since decades. in the given study, mutant type is crossed with wild type to obtain various combinations. Wild type characters of Drosophila are straight wings and long bristles, and mutant type characters are curled wings, and short bristles.

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Q8. A researcher wants to study the effectiveness of a pill intended to reduce stomach heartburn in pregnant women. The researcher chooses randomly 400 women to participate in this experiment for 9 months of their pregnancy period. They all need to have the same diet. The researcher designs two groups of 200 participants: One group take the real medication intended to reduce heartburn, while the other group take placebo medication. In this study what are: Independent variable: Dependent variable: Control variable: Experimental group: " Control group: If the participants do not know who is consuming the real pills and who is consuming the sugar pills. This study is It happens that 40% of the participants do not find the treatment helpful and drop out after 6 months. The researcher throws out the data from subjects that drop out. What type of bias is there in this study? If the company who makes the medication funds this research, what type of bias might exist in this research work?

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Answer 2

Question

Chapter 3, Problem 26PDQ

Summary Introduction

To analyze:

a. Dominant or recessive in each mutation in the given data.

b. Define gene symbols and genotypes of parents from the given data.

Cross Number of progeny

Straight wings-long bristles Straight wings-short bristles Curled wings-long bristles Curled wings-short bristles

1. Straight-short X straight-short 30 90 10 30

2. Straight-long X straight-long 120 0 40 0

3. Curled-long X straight-short 40 40 40 40

4. Straight-short X straight-short 40 120 0 0

5. Curled-short X straight-short 20 60 20 60

Introduction:

Drosophila is used for the study of molecular and genetic functions since decades. in the given study, mutant type is crossed with wild type to obtain various combinations. Wild type characters of Drosophila are straight wings and long bristles, and mutant type characters are curled wings, and short bristles.

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Answer 3

Question

Chapter 3, Problem 26PDQ

Summary Introduction

To analyze:

a. Dominant or recessive in each mutation in the given data.

b. Define gene symbols and genotypes of parents from the given data.

Cross Number of progeny

Straight wings-long bristles Straight wings-short bristles Curled wings-long bristles Curled wings-short bristles

1. Straight-short X straight-short 30 90 10 30

2. Straight-long X straight-long 120 0 40 0

3. Curled-long X straight-short 40 40 40 40

4. Straight-short X straight-short 40 120 0 0

5. Curled-short X straight-short 20 60 20 60

Introduction:

Drosophila is used for the study of molecular and genetic functions since decades. in the given study, mutant type is crossed with wild type to obtain various combinations. Wild type characters of Drosophila are straight wings and long bristles, and mutant type characters are curled wings, and short bristles.

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Answer 4

Question

Chapter 3, Problem 26PDQ

Summary Introduction

To analyze:

a. Dominant or recessive in each mutation in the given data.

b. Define gene symbols and genotypes of parents from the given data.

Cross Number of progeny

Straight wings-long bristles Straight wings-short bristles Curled wings-long bristles Curled wings-short bristles

1. Straight-short X straight-short 30 90 10 30

2. Straight-long X straight-long 120 0 40 0

3. Curled-long X straight-short 40 40 40 40

4. Straight-short X straight-short 40 120 0 0

5. Curled-short X straight-short 20 60 20 60

Introduction:

Drosophila is used for the study of molecular and genetic functions since decades. in the given study, mutant type is crossed with wild type to obtain various combinations. Wild type characters of Drosophila are straight wings and long bristles, and mutant type characters are curled wings, and short bristles.

Expert Solution & Answer

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Answer 5

Chapter 3, Problem 26PDQ

Summary Introduction

To analyze:

a. Dominant or recessive in each mutation in the given data.

b. Define gene symbols and genotypes of parents from the given data.

Cross Number of progeny

Straight wings-long bristles Straight wings-short bristles Curled wings-long bristles Curled wings-short bristles

1. Straight-short X straight-short 30 90 10 30

2. Straight-long X straight-long 120 0 40 0

3. Curled-long X straight-short 40 40 40 40

4. Straight-short X straight-short 40 120 0 0

5. Curled-short X straight-short 20 60 20 60

Introduction:

Drosophila is used for the study of molecular and genetic functions since decades. in the given study, mutant type is crossed with wild type to obtain various combinations. Wild type characters of Drosophila are straight wings and long bristles, and mutant type characters are curled wings, and short bristles.

Answer 6

Chapter 3, Problem 26PDQ

Summary Introduction

To analyze:

a. Dominant or recessive in each mutation in the given data.

b. Define gene symbols and genotypes of parents from the given data.

Cross Number of progeny

Straight wings-long bristles Straight wings-short bristles Curled wings-long bristles Curled wings-short bristles

1. Straight-short X straight-short 30 90 10 30

2. Straight-long X straight-long 120 0 40 0

3. Curled-long X straight-short 40 40 40 40

4. Straight-short X straight-short 40 120 0 0

5. Curled-short X straight-short 20 60 20 60

Introduction:

Drosophila is used for the study of molecular and genetic functions since decades. in the given study, mutant type is crossed with wild type to obtain various combinations. Wild type characters of Drosophila are straight wings and long bristles, and mutant type characters are curled wings, and short bristles.

Answer 7

Chapter 3, Problem 26PDQ

Summary Introduction

To analyze:

a. Dominant or recessive in each mutation in the given data.

b. Define gene symbols and genotypes of parents from the given data.

Cross Number of progeny

Straight wings-long bristles Straight wings-short bristles Curled wings-long bristles Curled wings-short bristles

1. Straight-short X straight-short 30 90 10 30

2. Straight-long X straight-long 120 0 40 0

3. Curled-long X straight-short 40 40 40 40

4. Straight-short X straight-short 40 120 0 0

5. Curled-short X straight-short 20 60 20 60

Introduction:

Drosophila is used for the study of molecular and genetic functions since decades. in the given study, mutant type is crossed with wild type to obtain various combinations. Wild type characters of Drosophila are straight wings and long bristles, and mutant type characters are curled wings, and short bristles.

Answer 8

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Answer 11

Ch. 3 - CASE STUDY | To test or not to test Thomas...Ch. 3 - CASE STUDY | To test or not to test Thomas...Ch. 3 - CASE STUDY | To test or not to test Thomas first...Ch. 3 - CASE STUDY | To test or not to test Thomas...Ch. 3 - When working out genetics problems in this and...Ch. 3 - When working out genetics problems in this and...Ch. 3 - When working out genetics problems in this and...Ch. 3 - When working out genetics problems in this and...Ch. 3 - When working out genetics problems in this and...Ch. 3 - When working out genetics problems in this and...

Solution Summary: The author explains that Drosophila is used for the study of molecular and genetic functions since decades.

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Chapter 3 Solutions

Cross		Number of progeny
Cross				Straight wings-long bristles	Straight wings-short bristles	Curled wings-long bristles	Curled wings-short bristles
1.	Straight-short X straight-short	30	90	10	30
2.	Straight-long X straight-long	120	0	40	0
3.	Curled-long X straight-short	40	40	40	40
4.	Straight-short X straight-short	40	120	0	0
5.	Curled-short X straight-short	20	60	20	60