Homeobox genes
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Last updated about 3 years ago
6 questions
1
•Distinguish clearly between the terms ‘homeoboxsequence’ and homeodomain sequence’.
•Distinguish clearly between the terms ‘homeoboxsequence’ and homeodomain sequence’.
1
•Describe the function of proteins that contain a homeodomain sequence.
•Describe the function of proteins that contain a homeodomain sequence.
1
•‘Homeoboxsequences are highly conserved’. Explain the significance of this phrase.
•‘Homeoboxsequences are highly conserved’. Explain the significance of this phrase.
1
•Explain the difference between homeoboxgenes and Hoxgenes
•Explain the difference between homeoboxgenes and Hoxgenes
5
•The Hoxgene Pax6 is necessary for the development of the retina in humans. A mutation in this gene can lead to blindness. Pax6 mutations also cause blindness in mice and fruit flies. Describe how scientists could have tested the idea that Pax6 plays a role in eye development in all three species.
•The Hoxgene Pax6 is necessary for the development of the retina in humans. A mutation in this gene can lead to blindness. Pax6 mutations also cause blindness in mice and fruit flies. Describe how scientists could have tested the idea that Pax6 plays a role in eye development in all three species.
1
•Consider the statement: ‘All Hoxgenes are homeoboxgenes but not all homeoboxgenes are Hoxgenes.’ Discuss the validity of this statement.
•Consider the statement: ‘All Hoxgenes are homeoboxgenes but not all homeoboxgenes are Hoxgenes.’ Discuss the validity of this statement.