What is the observed phenotype when the ultrabithorax gene is deleted in Drosophila

December 27, 2019 5:48 pm

Choose Your Answer:

AThe third thoracic segment is transformed into another second thoracic segment resulting in a fly with four wings.

BSince it specifies the second thoracic segment, instead of antenna leg grows out of the head socket.

CSince it specifies the third thoracic segment, a fly with two pairs of halters develop.

DSince this gene fails to be expressed in the second thoracic segment, the antennae sprout in the leg position.

Eduncle Best Answer
Ultrobithorax (Ubx) gene is required for the identity of the 3rd thoracic segment and when the ultrabithorax gene is deleted, the 3rd thoracic segment (characterised by halteres...
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