Auxotroph culture (His- and Lac-) culture of E. coli was mutagenised. On what media would one spread the mutagenised cells to select prototroph for both His+  and Lac+ cells?

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#Question id: 28282

#Unit 5. Developmental Biology

In sea urchins, which of the following protein plays a second role as a  fusogenic protein? 

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#Question id: 15441

#Unit 4. Cell Communication and Cell Signaling

In hermaphrodites, expression of the egl-1 gene in the neurons is repressed by the transcription factor, and deletion of that causes these neurons to undergo apoptosis;

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#Question id: 1586

#Unit 4. Cell Communication and Cell Signaling

In which of the cases would the precaution likely be taken to give the mother anti-Rh antibodies before delivering her baby?

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#Question id: 7074

#Unit 5. Developmental Biology

The left-right axis decided by the paracrine factor ____a___ and the transcription factor___b_____ expressed in ____c_____ side.

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#Question id: 18940

#Unit 13. Methods in Biology

which of the following permits the amplification of chosen segments of DNA or RNA for detailed study or cloning.