Developmental Biology
Developmental Biology
11th Edition
ISBN: 9781605354705
Author: Scott F. Gilbert, Michael J. F. Barresi
Publisher: Sinauer Associates is an imprint of Oxford University Press
bartleby

Videos

Question
Book Icon
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
Check Mark

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.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
HCG QUESTIONS 1. Where is hCG produced in the female body?2. How is hCG differ from other gonadal hormones?3. Being a hormone, what is its function?4. What other conditions lead to increased hCG production aside frompregnancy?Why?5. How can these conditions be differentiated from true pregnancy?
Practice Question 8 - Below are two cell signalling pathways that work together to regulate cell growth, proliferation and ultimately the size of organs in O.Extremus. In other closely related organisms, dysfunction of these pathways has been associated with tumor growth. mTOR pathway: 1. Growth factors bind and stimulate the receptors. crosstalk Hippo Pathway 2. Receptors can activate the phosphatidylinositol 3 kinase (PI3K) – Akt signaling pathway. MTOR Pathway - 3. The activated Akt, a serine threonine kinase, inhibits theTSC1–TSC2 complex, allowing Rheb to activate mTORC1. Mst РІЗК PTEN Lats АКТ 4. In parallel, amino acids activate the mTORC1 pathway through a mechanism requiring the Rag- ator con miR-29 YAP TSC2-TSC1 lex. amino acids Rag-Ragulator Hippo pathway: 1. The binding of the ligand activates the receptors which activate Mst and Lats. Rheb cell division MTORC1 organ size 2. YAP activity is modulated by phosphorylation of Mst and Lats. YAP upregulates miR-29, which in turn…
Practice Question 8 - Below are two cell signalling pathways that work together to regulate cell growth, proliferation and ultimately the size of organs in O.Extremus. In other closely related organisms, dysfunction of these pathways has been associated with tumor growth. mTOR pathway: 1. Growth factors bind and stimulate the receptors. crosstalk Hippo Pathway 2. Receptors can activate the phosphatidylinositol 3 kinase (PI3K) – Akt signaling pathway. MTOR Pathway 3. The activated Akt, a serine threonine kinase, inhibits the TSC1-TSC2 complex, allowing Rheb to activate mTORC1. Mst PI3K PTEN Lats AKT 4. In parallel, amino acids activate the mTORC1 pathway through a mechanism requiring the Rag- Ragulator complex. (miR-29 YAP TSC2-TSC1 amino acids Rag-Ragulator Hippo pathway: 1. The binding of the ligand activates the receptors which activate Mst and Lats. Rheb cell division MTORC1 organ size 2. YAP activity is modulated by phosphorylation of Mst and Lats. YAP upregulates miR-29, which in…

Chapter 24 Solutions

Developmental Biology

Knowledge Booster
Background pattern image
Biology
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Comprehensive Medical Assisting: Administrative a...
Nursing
ISBN:9781305964792
Author:Wilburta Q. Lindh, Carol D. Tamparo, Barbara M. Dahl, Julie Morris, Cindy Correa
Publisher:Cengage Learning
Text book image
Understanding Nutrition (MindTap Course List)
Health & Nutrition
ISBN:9781337392693
Author:Eleanor Noss Whitney, Sharon Rady Rolfes
Publisher:Cengage Learning
Phlebotomy: Venipuncture Procedure; Author: Medical Lab Lady Gill;https://www.youtube.com/watch?v=LC9LABPts7M;License: Standard Youtube License