DNA that has been liberally labeled with radioactive 14C is used as the template for replication. Replication is carried out in a medium containing only unlabeled nucleotides. After two rounds of replication, what percent of DNA molecules are still labeled?

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#Question id: 15183

#SCPH05 I Biotechnology

When in a gel more Joule heat is produced than can be dissipated, the temperature in the middle of the gel is higher than at the lateral edges. This causes higher mobility of the ions in the center, resulting in an uneven distribution of the zones. The zones bend up at the two lateral sides, causing

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#Question id: 677

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

A helical wheel can be used to show

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#Question id: 14357

#SCPH05 I Biotechnology

Milk is pasteurized if it is heated to 630C for 30 min, but if it is heated to 74°C it only needs 15 s for the same result. Find the activation energy of this sterilization process.  J/mol 

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#Question id: 57

#SCPH05 I Biotechnology

A(n) ________ has charge but negligible mass, whereas a(n) ________ has mass but no charge.

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#Question id: 19351

#SCPH28 | Zoology

Different organisms may preferentially use different codons to encode the same amino acid in the cases of such amino acids that are encoded by more than one codon this is called