In the United States, pregnant women are warned not to drink water from lakes that lie near abandoned mines. Introduction: The exogenous agents like drugs, chemicals, viruses, and infectious elements that cause birth defects are called teratogens. The development of humans ais divided into two main periods: embryonic period (end of week 8) and fetal period (remaining time in utero). Teratogens generally effect these crucial time periods between week 3 to 8.

Question

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Answer 1

Question

Chapter 24, Problem 1DQ

Summary Introduction

To review:

In the United States, pregnant women are warned not to drink water from lakes that lie near abandoned mines.

Introduction:

The exogenous agents like drugs, chemicals, viruses, and infectious elements that cause birth defects are called teratogens. The development of humans ais divided into two main periods: embryonic period (end of week 8) and fetal period (remaining time in utero). Teratogens generally effect these crucial time periods between week 3 to 8.

Expert Solution & Answer

Explanation of Solution

Abandoned mines often release water-soluble crude oil components that act as teratogenic molecules. A study revealed that in zebrafish embryo exposed to oil spill components produce larvae with developmental anomalies including reduction in size of head, gill, and thoracic cartilages associated with cranial neural crest migration. Often lakes near abandoned mines can be place of vector-borne diseases producing novel form of virus or bacteria. The mosquito-borne Zika virus can cause a birth defect microcephaly characterized by small brains and heads. These virus directly infect neural progenitor cells of the fetal cortex, resulting in death of cells causing smaller brain and head of newborn.

Conclusion

The pregnant women are warned not to drink water from lakes that lie near abandoned mines because they can contain teratogens causing birth defects in developing fetus.

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Students have asked these similar questions

You aim to test the hypothesis that the Tbx4 and Tbx5 genes inhibit each other's expression during limb development. With access to chicken embryos and viruses capable of overexpressing Tbx4 and Tbx5, describe an experiment to investigate whether these genes suppress each other's expression in the limb buds. What results would you expect if they do repress each other? What results would you expect if they do not repress each other?

You decide to delete Fgf4 and Fgf8 specifically in the limb bud. Explain why you would not knock out these genes in the entire embryo instead.

You implant an FGF10-coated bead into the anterior flank of a chicken embryo, directly below the level of the wing bud. What is the phenotype of the resulting ectopic limb? Briefly describe the expected expression domains of 1) Shh, 2) Tbx4, and 3) Tbx5 in the resulting ectopic limb bud.

Answer 2

Question

Chapter 24, Problem 1DQ

Summary Introduction

To review:

In the United States, pregnant women are warned not to drink water from lakes that lie near abandoned mines.

Introduction:

The exogenous agents like drugs, chemicals, viruses, and infectious elements that cause birth defects are called teratogens. The development of humans ais divided into two main periods: embryonic period (end of week 8) and fetal period (remaining time in utero). Teratogens generally effect these crucial time periods between week 3 to 8.

Expert Solution & Answer

Explanation of Solution

Abandoned mines often release water-soluble crude oil components that act as teratogenic molecules. A study revealed that in zebrafish embryo exposed to oil spill components produce larvae with developmental anomalies including reduction in size of head, gill, and thoracic cartilages associated with cranial neural crest migration. Often lakes near abandoned mines can be place of vector-borne diseases producing novel form of virus or bacteria. The mosquito-borne Zika virus can cause a birth defect microcephaly characterized by small brains and heads. These virus directly infect neural progenitor cells of the fetal cortex, resulting in death of cells causing smaller brain and head of newborn.

Conclusion

The pregnant women are warned not to drink water from lakes that lie near abandoned mines because they can contain teratogens causing birth defects in developing fetus.

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Answer 3

Question

Chapter 24, Problem 1DQ

Summary Introduction

To review:

In the United States, pregnant women are warned not to drink water from lakes that lie near abandoned mines.

Introduction:

The exogenous agents like drugs, chemicals, viruses, and infectious elements that cause birth defects are called teratogens. The development of humans ais divided into two main periods: embryonic period (end of week 8) and fetal period (remaining time in utero). Teratogens generally effect these crucial time periods between week 3 to 8.

Expert Solution & Answer

Explanation of Solution

Abandoned mines often release water-soluble crude oil components that act as teratogenic molecules. A study revealed that in zebrafish embryo exposed to oil spill components produce larvae with developmental anomalies including reduction in size of head, gill, and thoracic cartilages associated with cranial neural crest migration. Often lakes near abandoned mines can be place of vector-borne diseases producing novel form of virus or bacteria. The mosquito-borne Zika virus can cause a birth defect microcephaly characterized by small brains and heads. These virus directly infect neural progenitor cells of the fetal cortex, resulting in death of cells causing smaller brain and head of newborn.

Conclusion

The pregnant women are warned not to drink water from lakes that lie near abandoned mines because they can contain teratogens causing birth defects in developing fetus.

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Answer 4

Question

Chapter 24, Problem 1DQ

Summary Introduction

To review:

In the United States, pregnant women are warned not to drink water from lakes that lie near abandoned mines.

Introduction:

The exogenous agents like drugs, chemicals, viruses, and infectious elements that cause birth defects are called teratogens. The development of humans ais divided into two main periods: embryonic period (end of week 8) and fetal period (remaining time in utero). Teratogens generally effect these crucial time periods between week 3 to 8.

Expert Solution & Answer

Explanation of Solution

Abandoned mines often release water-soluble crude oil components that act as teratogenic molecules. A study revealed that in zebrafish embryo exposed to oil spill components produce larvae with developmental anomalies including reduction in size of head, gill, and thoracic cartilages associated with cranial neural crest migration. Often lakes near abandoned mines can be place of vector-borne diseases producing novel form of virus or bacteria. The mosquito-borne Zika virus can cause a birth defect microcephaly characterized by small brains and heads. These virus directly infect neural progenitor cells of the fetal cortex, resulting in death of cells causing smaller brain and head of newborn.

Conclusion

The pregnant women are warned not to drink water from lakes that lie near abandoned mines because they can contain teratogens causing birth defects in developing fetus.

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Answer 5

Chapter 24, Problem 1DQ

Summary Introduction

To review:

In the United States, pregnant women are warned not to drink water from lakes that lie near abandoned mines.

Introduction:

The exogenous agents like drugs, chemicals, viruses, and infectious elements that cause birth defects are called teratogens. The development of humans ais divided into two main periods: embryonic period (end of week 8) and fetal period (remaining time in utero). Teratogens generally effect these crucial time periods between week 3 to 8.

Expert Solution & Answer

Explanation of Solution

Abandoned mines often release water-soluble crude oil components that act as teratogenic molecules. A study revealed that in zebrafish embryo exposed to oil spill components produce larvae with developmental anomalies including reduction in size of head, gill, and thoracic cartilages associated with cranial neural crest migration. Often lakes near abandoned mines can be place of vector-borne diseases producing novel form of virus or bacteria. The mosquito-borne Zika virus can cause a birth defect microcephaly characterized by small brains and heads. These virus directly infect neural progenitor cells of the fetal cortex, resulting in death of cells causing smaller brain and head of newborn.

Conclusion

The pregnant women are warned not to drink water from lakes that lie near abandoned mines because they can contain teratogens causing birth defects in developing fetus.

Answer 6

Chapter 24, Problem 1DQ

Summary Introduction

To review:

In the United States, pregnant women are warned not to drink water from lakes that lie near abandoned mines.

Introduction:

The exogenous agents like drugs, chemicals, viruses, and infectious elements that cause birth defects are called teratogens. The development of humans ais divided into two main periods: embryonic period (end of week 8) and fetal period (remaining time in utero). Teratogens generally effect these crucial time periods between week 3 to 8.

Expert Solution & Answer

Explanation of Solution

Abandoned mines often release water-soluble crude oil components that act as teratogenic molecules. A study revealed that in zebrafish embryo exposed to oil spill components produce larvae with developmental anomalies including reduction in size of head, gill, and thoracic cartilages associated with cranial neural crest migration. Often lakes near abandoned mines can be place of vector-borne diseases producing novel form of virus or bacteria. The mosquito-borne Zika virus can cause a birth defect microcephaly characterized by small brains and heads. These virus directly infect neural progenitor cells of the fetal cortex, resulting in death of cells causing smaller brain and head of newborn.

Conclusion

The pregnant women are warned not to drink water from lakes that lie near abandoned mines because they can contain teratogens causing birth defects in developing fetus.

Answer 7

Chapter 24, Problem 1DQ

Summary Introduction

To review:

In the United States, pregnant women are warned not to drink water from lakes that lie near abandoned mines.

Introduction:

The exogenous agents like drugs, chemicals, viruses, and infectious elements that cause birth defects are called teratogens. The development of humans ais divided into two main periods: embryonic period (end of week 8) and fetal period (remaining time in utero). Teratogens generally effect these crucial time periods between week 3 to 8.

Answer 8

Expert Solution & Answer

Explanation of Solution

Abandoned mines often release water-soluble crude oil components that act as teratogenic molecules. A study revealed that in zebrafish embryo exposed to oil spill components produce larvae with developmental anomalies including reduction in size of head, gill, and thoracic cartilages associated with cranial neural crest migration. Often lakes near abandoned mines can be place of vector-borne diseases producing novel form of virus or bacteria. The mosquito-borne Zika virus can cause a birth defect microcephaly characterized by small brains and heads. These virus directly infect neural progenitor cells of the fetal cortex, resulting in death of cells causing smaller brain and head of newborn.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Conclusion

The pregnant women are warned not to drink water from lakes that lie near abandoned mines because they can contain teratogens causing birth defects in developing fetus.

Answer 12

Ch. 24 - Prob. 1DQ Ch. 24 - Prob. 2DQ

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