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.

Akash @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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