#Question id: 3861
#Section 3: Genetics, Cellular and Molecular Biology
_ are sequences that are removed from primary transcripts, and _ are sequences that remain present in mature mRNA molecules.
#Question id: 14241
#Section 5: Bioprocess Engineering and Process Biotechnology
Yeast cells are to be separated from a fermentation broth.
Assume that the cells are spherical with diameter 5 µm and density 1.06 g cm-3.
The viscosity of the culture broth is 1.36 x 10-3 N s m-2.
At the temperature of separation, the density of the suspending fluid is 0.997
g cm-3. 500 litres broth must be treated every hour. Specify Σ
for a suitably-sized disc-stack centrifuge
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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?
#Question id: 16870
#General Aptitude
#Question id: 3011
#Section 2: General Biology
Bacteria that may form endospores include