The anterior posterior compartment of each segment of drosophila is defined by wingless and engrailed genes. The following statements are given towards explaining their regulation:

A.cells secreting Hedgehog protein activate wingless expression in their neighbors, and the Wingless protein signal, which is received by the cells that secreted Hedgehog, serves to maintain hedgehog (hh) expression.

B.Engrailed protein also acts in an autocrine fashion, maintaining its own expression.

C.The cells expressing engrailed can bind wingless protein because they contain Frizzled, which is the Drosophila membrane receptor protein for Wingless.

D.Binding of Wingless to Frizzled activates the hedgehog signal transduction pathway, resulting in the continued expression of engrailed.

Which of the following option has all the incorrect statements?

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#Question id: 12440

#Unit 10. Ecological Principles

Tadpoles raised at high population densities _______ relative to those raised at lower population densities.

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#Question id: 7149

#Unit 5. Developmental Biology

What role, if any, do Hox genes play in specification of neuronal fate?

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#Question id: 15967

#Unit 12. Applied Biology

Which culture technique is responsible for the immature embryo rescue?

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#Question id: 524

#Unit 1. Molecules and their Interaction Relevant to Biology

The enzyme that catalyzes the conversion of pyruvate to lactate is ________.

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#Question id: 1369

#Unit 4. Cell Communication and Cell Signaling

The following statements are made with reference to characteristics of glycosaminoglycans and proteoglycans, which are major constituents of extracellular matrix. Which one of them is incorrect?