The smooth ER is especially abundant in cells that synthesize extensive amounts of

TLS Online TPP Program

#Question id: 5038

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

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

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#Question id: 2624

#SCPH28 | Zoology

What is negative regulation of lac operon

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#Question id: 16135

#SCPH01 Biochemistry

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:

 

Would you expect the DNA sequence of PCR product obtained at STS5 using mouse genomic DNA as template to more closely resemble that obtained using BAC B, BAC D, or BAC F? Briefly explain your answer.

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#Question id: 4158

#SCPH05 I Biotechnology

What is a reasonable number of nucleotides in a tRNA molecule?

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#Question id: 16015

#SCPH05 I Biotechnology

During the growth of animal cells in culture, it is noticed that the cells do not look very healthy. After an investigation, this is found that there is a lot of lactic acid in the culture fluid. What is probably wrong with this culture?