Suppose expression of gene A is limited to the middle part of the early mouse embryo. Expression of gene B is located on the posterior and anterior ends of the early mouse embryo, but not in the middle. When gene B is mutated, expression of gene A is distributed over the whole embryo. What is a likely explanation for this data? O a) Gene A acts as an activator of gene B. O b) Gene A acts as a repressor of gene B. O c) Gene B acts as an activator of gene A. d) Gene B acts as a repressor of gene A.
Suppose expression of gene A is limited to the middle part of the early mouse embryo. Expression of gene B is located on the posterior and anterior ends of the early mouse embryo, but not in the middle. When gene B is mutated, expression of gene A is distributed over the whole embryo. What is a likely explanation for this data? O a) Gene A acts as an activator of gene B. O b) Gene A acts as a repressor of gene B. O c) Gene B acts as an activator of gene A. d) Gene B acts as a repressor of gene A.
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
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:Suppose expression of gene A is limited to the middle part of the early mouse
embryo. Expression of gene B is located on the posterior and anterior ends of the
early mouse embryo, but not in the middle. When gene B is mutated, expression of
gene A is distributed over the whole embryo. What is a likely explanation for this
data?
a) Gene A acts as an activator of
gene B.
Ob) Gene A acts as a repressor of gene B.
O c) Gene B acts as an activator of gene A.
() d) Gene B acts as a repressor of gene A.
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