A mutated E. coli cell carries out and completes DNA replication, but the lagging strands are found to contain more errors than normal. These errors are not found evenly distributed throughout the lagging strands, but are found in clusters. Which enzymatic activity is missing from this cell?

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#Question id: 3783

#Section 3: Genetics, Cellular and Molecular Biology

What is the basis for the difference in how the leading and lagging strands of DNA molecules are synthesized?

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#Question id: 543

#Section 4: Fundamentals of Biological Engineering

If glucose labeled with 14C at C^-1 (the aldehyde carbon) were metabolized in the liver, the first radioactive pyruvate formed would be labeled in:

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#Question id: 15251

#Section 6: Plant, Animal and Microbial Biotechnology

The alga Dunaliella viridis tolerates high concentrations of

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#Question id: 3700

#Section 3: Genetics, Cellular and Molecular Biology

In the Meselson-Stahl DNA replication experiment, if the cells were first grown for many generations in 15N containing media, and then switched to 14N containing media, what percent of the DNA had 1 light strand and 1 heavy strand after 2 generations of growth in 15N growth media?

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#Question id: 15375

#Section 1: Engineering Mathematics

F(s) is the Laplace transform of the function

f(t) = 2t²e^-t   F (1) is ......   (correct to two decimal places)