Concepts of Genetics Plus Mastering Genetics with Pearson eText -- Access Card Package (12th Edition) (What's New in Genetics)
Concepts of Genetics Plus Mastering Genetics with Pearson eText -- Access Card Package (12th Edition) (What's New in Genetics)
12th Edition
ISBN: 9780134811390
Author: William S. Klug, Michael R. Cummings, Charlotte A. Spencer, Michael A. Palladino, Darrell Killian
Publisher: PEARSON
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Chapter 19, Problem 19PDQ

A developmental disorder in humans called spina bifida is a neural tube defect linked to a maternal diet low in folate during pregnancy.

  1. (a) What does this suggest about the cause of spina bifida?
  2. (b) Does this exclude genetic mutations as a cause of this condition?
  3. (c) Should researchers be looking for mutant alleles of genes that control formation and differentiation of the neural tube?
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the ectoderm of a gastrula stage vertebrate embryo, what is the major function of BMP4? a). repress nervous system development b). repress skin development c). promote nervous system development d). promote the onset of gastrulation e). More than one of the above are correct. 2. Which is an essential characteristic of neural stem cells? a)    The ability to differentiate into any type of cell b)    The ability to dispense with bacteria, damaged neuron, or toxic proteins in the brain c)    The ability to guide neurons to their final location d)    The ability to suppress the activity of the immune system e)    The ability to differentiate into any cell type found in the central nervous system
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