The theory that every cell of an organism has the same genome as every other cell

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#Question id: 5611

#Unit 5. Developmental Biology

Which ion play an essential role in pollen tube growth?

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#Question id: 28166

#Unit 13. Methods in Biology

The stability of YAC clones increases with the length of the cloned DNA segment, what is the minimum length require for stability as normal cellular chromosomes

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#Question id: 2954

#Unit 2. Cellular Organization

Cyclin concentrations are highest during which periods of the cell cycle?

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#Question id: 16136

#Unit 13. Methods in Biology

You obtain 6 BACs (of known order, as shown below) and 7 STSs (of unknown order) that derive from a region of mouse chromosome 16 whose genomic sequence has not yet been finished.   

 

By PCR (using 20-bp primers at either end of each STS), you test each of the 6 BACs for the presence (+) or absence (-) of each of the 7 STSs. You obtain the following results:

 

Is there a second STS at which you would like to sequence PCR products obtained using BACs as templates? If so, which BACs would you test in this way, and what sequencing results might you predict for each of the BACs tested?

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#Question id: 18886

#Unit 13. Methods in Biology

What type of microscopy allows for the visualization of internal components within live, unstained specimens?