Question 10 (1 point) You have discovered a fruit fly with a set of wings growin

Question

Question 10 (1 point)

You have discovered a fruit fly with a set of wings growing out of its head, instead of from his abdomen. Upon sequencing the mutant's Hox gene cluster, you realize:

Question 10 options:

the gene which determines wing placement has been deleted.

the gene which determines wing placement has been duplicated.

the gene which determines wing placement has been moved forward in the cluster.

the gene which determines wing placement has been moved to the end of the cluster.

the gene which determines wing placement has been deleted.

the gene which determines wing placement has been duplicated.

the gene which determines wing placement has been moved forward in the cluster.

the gene which determines wing placement has been moved to the end of the cluster.

Explanation / Answer

Homeotic genes are regulatory genes and are also called master genes because they determine the fate of morphological structures like appendages during the process of morphogenesis. A mutation in homeotic gene may result in formation of wings or appendages in anterior head region. This might be due to the homeotic gene encoding wings has been moved forward in the cluster to anterior head region. Therefore, option 3 is correct.

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