True or False: Follicle cells on the dorsal side of the Drosophila embryo produce the Backless protein.

Outline the molecular mechanism of sex determination in Drosophila and mammals.

Give typing answer with explanation and conclusion

What will be the effect on sexual development in newly fertilized Drosophila embryos if the following genes are deleted? Q. transformer

Explain how alternative splicing affects sex determination in Drosophila.

What will be the effect on sexual development in newly fertilized Drosophila embryos if the following genes are deleted? Q. sex-lethal

The figure below shows the distribution of proteins during embryo development in Drosophila. These proteins are encoded by which types of genes? Which proteins regulate the expression of these genes?

You inject bicoid MRNA into the posterior end of a fertilized fruit fly egg just prior to the first cleavage. How will the experiment affect Hox gene expression in this fly? How will it affect the fly embryo's anatomy? Explain your answer, demonstrating your understanding of the role bicoid and Hox genes play in development.

Determines Sex in Drosophila?

A mutation occurs in the Drosophila doublesex gene that prevents Tra from binding to the dsx RNA transcript. What would be the consequences of this mutation for Dsx protein expression in males? In females?