The insects which have two wings are classified as dipterans. Dipterans are supposed to evolve from a four − winged ancestor that had wings on both T2 and T3 thoracic segments, as present in butterflies and dragonflies. Provide the description on evolutionary condition for the evolution of dipterans from four − winged ancestors. Also identify the type of mutations results in two wing development in the butterfly. Introduction: Drosophila is a model organism for the study of development. It has a well studied genome sequence. Multiple genes are involved in the development of drosophila. Hox gene product functions as a transcription factor for homeobox gene (ultrabithorax and Antennapedia gene complex). In Drosophila, antennapedia is a hox gene that controls the formation of legs during development. It consists of five hox genes which work in combination for the development of cephalic and thoracic parasegments. Bithorax complex is a group of homeotic genes that regulator the differentiation of abdominal and post thoracic segments.

Question

Want to see the full answer?

Answer 1

Question

Chapter 20, Problem 27P

Summary Introduction

To analyze:

The insects which have two wings are classified as dipterans. Dipterans are supposed to evolve from a four − winged ancestor that had wings on both T2 and T3 thoracic segments, as present in butterflies and dragonflies. Provide the description on evolutionary condition for the evolution of dipterans from four − winged ancestors. Also identify the type of mutations results in two wing development in the butterfly.

Introduction:

Drosophila is a model organism for the study of development. It has a well studied genome sequence. Multiple genes are involved in the development of drosophila. Hox gene product functions as a transcription factor for homeobox gene (ultrabithorax and Antennapedia gene complex). In Drosophila, antennapedia is a hox gene that controls the formation of legs during development. It consists of five hox genes which work in combination for the development of cephalic and thoracic parasegments. Bithorax complex is a group of homeotic genes that regulator the differentiation of abdominal and post thoracic segments.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

If using animals in medical experiments could save human lives, is it ethical to do so? In your answer, apply at least one ethical theory in support of your position.

You aim to test the hypothesis that the Tbx4 and Tbx5 genes inhibit each other's expression during limb development. With access to chicken embryos and viruses capable of overexpressing Tbx4 and Tbx5, describe an experiment to investigate whether these genes suppress each other's expression in the limb buds. What results would you expect if they do repress each other? What results would you expect if they do not repress each other?

You decide to delete Fgf4 and Fgf8 specifically in the limb bud. Explain why you would not knock out these genes in the entire embryo instead.