During gastrulation in the frog, the very first cells to move into the interior of the embryo through the blastopore come from the surface layer of cells in the marginal zone; they will become:

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#Question id: 7140

#Unit 5. Developmental Biology

In thinking about the development of the wing imaginal disc of Drosophila, what is the significance of 'compartments'?

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#Question id: 7141

#Unit 5. Developmental Biology

Engrailed comes to be expressed in posterior compartments during Drosophila embryogenesis; what is the consequence of engrailed activation of hedgehog (Hh) signaling from the posterior compartment of the wing disc?

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#Question id: 7142

#Unit 5. Developmental Biology

Keeping in mind the fact that genes are often named for the phenotype of a mutation in that gene, what might be the phenotype of a mutation of the Distal-less gene of Drosophila?

TLS Online TPP Program

#Question id: 7143

#Unit 5. Developmental Biology

The development of drugs to block the activity of vascular endothelial growth factor (VEGF) has been applied to the control of the growth of cancers. What is the rationale for such a strategy?

TLS Online TPP Program

#Question id: 7144

#Unit 5. Developmental Biology

Heart development begins as

TLS Online TPP Program

#Question id: 7145

#Unit 5. Developmental Biology

In the development of the nervous system, which is the correct order of events?