Scientists Using RNA Hybridization Techniques Found That a Transcription Factor

Multiple Choice

Scientists using RNA hybridization techniques found that a transcription factor called macho-1 localized to some cells during early cleavage,but not others.Descendents of these cells produce mesodermal derivatives.Which structures might not be found in embryos depleted of macho-1?

A) neural tube
B) somites
C) digestive system
D) skin