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Mario Mario
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If a gene in Drosophila is expressed only in imaginal disc (A) when it begins to differentiate, it is referred to as a homeotic gene. Recessive mutations in such genes often result in loss of function so that the structure does not develop. If a transgenic organism is made in which the gene is expressed in a different imaginal, disc (B), what is the predicted result?

▸ loss of function of disc B's primary gene

▸ gain of function of several inappropriate genes in disc A

▸ gain of function in disc B of some of the structures usually seen in disc A

▸ deregulation of gene expression throughout disc A

▸ deregulation of gene expression throughout disc B
Textbook 

Genetic Analysis: An Integrated Approach


Edition: 3rd
Authors:
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poke m.poke master
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gain of function in disc B of some of the structures usually seen in disc A

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