A freshly-prepared aqueous solution of α-D-glucose, has a specific rotation

A fresh solution of β-D-glucose, on the other hand, has a rotation value of +18.7°

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#Id: 1048

#Unit 5. Developmental Biology

Sonic hedgehog, is the major active factor in the ZPA. 

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#Id: 1049

#Unit 5. Developmental Biology

The apical ectodermal ridge is a thickening of the ectoderm at the apex of the developing limb bud.

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#Id: 1050

#Unit 5. Developmental Biology

Fgf8 is the major active factor in the AER.

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#Id: 1051

#Unit 5. Developmental Biology

Homeobox transcription factors, or Hox genes, play an essential role in specifying whether a particular mesenchymal cell will become stylopod, zeugopod, or autopod.

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#Id: 1052

#Unit 5. Developmental Biology

Hox9 and Hox10 paralogues specify the stylopod

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#Id: 1053

#Unit 5. Developmental Biology

Hox11 paralogues specify the zeugopod