During the gastrula stage, the developmental fate of the cells becomes "determined".

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Chapter 26, Problem 9MC

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During the gastrula stage, the developmental fate of the cells becomes "determined".

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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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Chapter 26, Problem 9MC

Summary Introduction

Introduction:
During the gastrula stage, the developmental fate of the cells becomes "determined".

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Chapter 26, Problem 9MC

Summary Introduction

Introduction:
During the gastrula stage, the developmental fate of the cells becomes "determined".

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Chapter 26, Problem 9MC

Summary Introduction

Introduction:
During the gastrula stage, the developmental fate of the cells becomes "determined".

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Chapter 26, Problem 9MC

Summary Introduction

Introduction:
During the gastrula stage, the developmental fate of the cells becomes "determined".

Answer 6

Chapter 26, Problem 9MC

Summary Introduction

Introduction:
During the gastrula stage, the developmental fate of the cells becomes "determined".

Answer 7

Chapter 26, Problem 9MC

Summary Introduction

Introduction:
During the gastrula stage, the developmental fate of the cells becomes "determined".

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Ch. 26 - Prob. 1SA Ch. 26 - Prob. 2SA Ch. 26 - Prob. 3SA Ch. 26 - Prob. 4SA Ch. 26 - Prob. 5SA Ch. 26 - Prob. 6SA Ch. 26 - Prob. 7SA Ch. 26 - Prob. 8SA Ch. 26 - Prob. 9SA Ch. 26 - Prob. 10SA

During the gastrula stage, the developmental fate of the cells becomes "determined".

Solution Summary: The author explains that the developmental fate of the cells is determined during the gastrula stage. Mitosis is not a stage of development in the embryo.

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Introduction:
During the gastrula stage, the developmental fate of the cells becomes "determined".

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Chapter 26 Solutions

During the gastrula stage, the developmental fate of the cells becomes "determined".

Solution Summary: The author explains that the developmental fate of the cells is determined during the gastrula stage. Mitosis is not a stage of development in the embryo.

Concept explainers

Videos

Introduction:During the gastrula stage, the developmental fate of the cells becomes "determined".

Want to see the full answer?

Chapter 26 Solutions

Introduction:
During the gastrula stage, the developmental fate of the cells becomes "determined".