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: 4340

#SCPH05 I Biotechnology

There is a mutation that is found in E. coli in the repressor that results in a molecule known as a super-repressor because it represses the lac operon permanently. Which of the following characteristics would you expect to observe in such a mutant?

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#Question id: 5063

#SCPH01 Biochemistry

 ______ required to maintain ES cells in an undifferentiated state.

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#Question id: 1709

#SCPH05 I Biotechnology

What are the specialized cell type involved in the entry of lymphocytes into lymph nodes called?

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#Question id: 3522

#SCPH06 I Botany

A haplo-diplod insect, Male are haploid but female are diploid, A female who is heterozygous for recessive red eye color mutation mate with red eye male. What will be percent of wild phenotype color eye among their female?

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#Question id: 2930

#SCPH01 Biochemistry

The S. cerevisiae homolog of Xenopus MPF is: