Master regulatory genes play critical roles in development. Predict the MOST likely fate of a fly embryo where master regulatory genes were nonfunctional due to mutation. A. Cell division would stop, and the embryo would halt development. B. The embryo would be a collection of undifferentiated cells because they never get the message that will send them down a determination pathway. C. The embryo would be a combination of differentiated and undifferentiated cells because, even in the absence of a functional master regulatory gene, some cells will differentiate on their own. D. The embryo would continue to develop, but there is a high probability that some limbs may end up in the wrong place in the adult.
Master regulatory genes play critical roles in development. Predict the MOST likely fate of a fly embryo where master regulatory genes were nonfunctional due to mutation. A. Cell division would stop, and the embryo would halt development. B. The embryo would be a collection of undifferentiated cells because they never get the message that will send them down a determination pathway. C. The embryo would be a combination of differentiated and undifferentiated cells because, even in the absence of a functional master regulatory gene, some cells will differentiate on their own. D. The embryo would continue to develop, but there is a high probability that some limbs may end up in the wrong place in the adult.
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
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Master regulatory genes play critical roles in development. Predict the MOST likely fate of a fly embryo where master regulatory genes were nonfunctional due to mutation.
A. Cell division would stop, and the embryo would halt development.
B. The embryo would be a collection of undifferentiated cells because they never get the message that will send them down a determination pathway.
C. The embryo would be a combination of differentiated and undifferentiated cells because, even in the absence of a functional master regulatory gene, some cells will differentiate on their own.
D. The embryo would continue to develop, but there is a high probability that some limbs may end up in the wrong place in the adult.
Expert Solution
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Regulator genes as the name suggest help in controlling the expression of other genes, all genes are not expressed in all cells and even under all circumstances.
Usually present downstream of the reading frames.
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