Concept explainers
To review:
The possibility of trunk neural crest cells which are multipotent stem cells, to act as novel developmental seeds, which later retained as adult stem cells in each of their final destinations.
Introduction:
The emergence of neural crest is one of the important event in animal evolution. This is a transient structure which is derived from the ectoderm and sometimes considered as a fourth germ layer. The neural crest is defined as a population of cells which have a tendency to produce diverse tissues. This is divided into four types: Cranial or cephalic neural crest, Cardiac neural crest, Trunk neural crest, and the fourth one is vagal and sacral neural crest.
Explanation of Solution
Neural crest cells are characterized as multipotent cell population, with the capability of migration. These migratory cells have a tendency to generates diverse array of cell types during the process of vertebral development. The trunk neural crest possses a particular significance because of their diverse roles like morphogenetic role in the development of peripheral nervous system, secretory cells in endocrine system, pigment cells etc.
The hypothesis based on the multipotent nature of trunk crest cells indicate that adult stem cells bears plasticity. Adult stem cells shows the transdifferentiation and dedifferentiation which explain the plasticity properties. Neural crest cells have pluripotency and it has been proposed that pluripotent neural crest cells have a tendency to modify during the migration to their final destination.
Thus it is concluded that trunk neural crest cells may act as developmental seeds and because of their pluripotent nature they can retain as adult stem cells in each of their final destinations.
Want to see more full solutions like this?
Chapter 15 Solutions
Developmental Biology
- IDENTIFICATION (Subject - Development Biology) 1. It is a historical transformation of the forms of life starting from the simple forms of the past to the complex forms of the present? 2. This is formed when small group of cells segregate from another group of cells? 3. Its a process when one embryonic region interacts with the second and affects the second regions differentiation or behaviour?arrow_forwardTOPIC 2 OBJECTIVES • How do physical laws affect morphology? • What is meant by the term “efficiency”? • How can I make sure I’m using it correctly? • How does the size of an organism constrain its morphology? • How can we use physics to describe the function of vertebrate limbs? • How do vertebrates address the problems of movement through fluids? • How do we describe the strength of vertebrate tissues? • How do vertebrate tissues respond to stress? • How do physical constraints control the movement of materials between organisms and the environment?arrow_forwardNeed help 1 and 2 1.) Which of the following change occurs during the third trimester of fetal development? A. Skin appears bright pink due to blood-filled capillaries B. Lanugo hair develops C. Bone development begins D. All red bood cells are formed in the bone marrow 2.) Hormones play an important role in controlling the development and general metabolism of the human body Hormones are secreted by ductless glands called endocrine glandsFrom the following endocrine glands choose the one that develops from the ectoderm : A. Adrenal cortex B. Parathyroid gland C. Pituitary gland D. Thyroid glandarrow_forward
- Q1: Multiple sclerosis is a demyelinating disease affecting the central nervous system. What type of cell would be the most likely target of this disease? Why? What is the normal function of this type of cell and what would be the consequence?arrow_forward[questions 4-6] Volume of the sea Urchin egg is 5.2 x 105 µm3 . You fertilize the cells and take measurements of cellular dimensions at the four blastomere stage. Assume a perfect sphere. 5) What would you predict is the volume of each the sea urchin blastomeres? A) 1.3 x 105 µm3 B) 1.3 x 106 µm3 C) 1.24 x 104 µm3 D) 3.9 x 105 µm3 E) 25 µm F) None of thesearrow_forwardQuestions for Part 2 for Ken Burns The Gene: An Intimate History "Revolution in the Treatment of Disease" What was the Human Genome Project? When was it and give results. What inherit dangers go along with genetic engineering? What is genome sequencing? What makes viruses unique for genetic engineering? What happened with the first Gene Therapy Trials for OTC at the University of Pennsylvania? Why did it fail specifically? Describe Sickle Cell Disease and on what gene does the mutation reside? Explain the significance of the companion gene and the gene for sickle cell in gene therapy? What is CRISPR and how is it used? please answer 4,5,6 please asap.arrow_forward
- Questions for Part 2 for Ken Burns The Gene: An Intimate History "Revolution in the Treatment of Disease" What was the Human Genome Project? When was it and give results. What inherit dangers go along with genetic engineering? What is genome sequencing? What makes viruses unique for genetic engineering? What happened with the first Gene Therapy Trials for OTC at the University of Pennsylvania? Why did it fail specifically? Describe Sickle Cell Disease and on what gene does the mutation reside? Explain the significance of the companion gene and the gene for sickle cell in gene therapy? What is CRISPR and how is it used? pleaae answer 1,2,3 asaparrow_forwardHelp please answer quickly Three patients in an intensive care unit have sustained damage and widespread tissue death in three different organs. One patient has brain damage from a stroke, another had a heart attack that destroyed cardiac muscle, and the third injured much of her liver (a gland) in a crushing car accident. All three patients have stabilized and will survive, but only one will gain full functional recovery through tissue regeneration. Which one, and why?arrow_forwardneed help with Q4-Q5 Thanks!arrow_forward
- please help 2 questions 1) how can you tell the difference between male and female fruit fly? 2) what mutation is sex linked?arrow_forwardQUESTIONS: Mesodermal Derivatives of the 10 mm Pig Embryo, what is the fate of the metanephrogenic mesoderm? Mesodermal Derivatives of the 10 mm Pig Embryo, what happens to the Mullerian duct in the female? In the male?arrow_forwardReview for Cervical cancer patient how biology and science can guide their decision-making.arrow_forward
- Comprehensive Medical Assisting: Administrative a...NursingISBN:9781305964792Author:Wilburta Q. Lindh, Carol D. Tamparo, Barbara M. Dahl, Julie Morris, Cindy CorreaPublisher:Cengage LearningBiology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning