The Hox genes came to regulate each of the following in what sequence, from earliest to most recent?

1. identity and position of paired appendages in protostome embryos

2. formation of water channels in sponges

3. anterior-posterior orientation of segments in protostome embryos

4. positioning of tentacles in cnidarians

5. anterior-posterior orientation in vertebrate embryos

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#Question id: 945

#SCPH28 | Zoology

A key precursor in the synthesis of aromatic amino acids (tryptophan, tyrosine and phenylalanine) is ________.

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#Question id: 19541

#SCPH05 I Biotechnology

Which has the maximum electropositive character?

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#Question id: 5249

#I Life Science/ Life Sciences Group – I-V

What is the best explanation for why Bernard Davis didn't observe generalized transduction in his U tube experiments?

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#Question id: 5038

#SCPH06 I Botany

The folding of sheets of cells, the migration of cells, and cell death are all mechanisms of

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#Question id: 11561

#SCPH28 | Zoology

An example of antagonistic hormones controlling homeostasis is ________.