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TLS Online TPP Program

#Question id: 4347

According to the lac operon model proposed by Jacob and Monod, what is predicted to occur if the operator is removed from the operon?

#Section 3: Genetics, Cellular and Molecular Biology

  1. The lac operon would be transcribed continuously.

  2. Only lacZ would be transcribed.

  3. Only lacY would be transcribed.

  4. Galactosidase permease would be produced, but would be incapable of transporting lactose.

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TLS Online TPP Program

#Question id: 407

#Section 4: Fundamentals of Biological Engineering

The reaction A + B -> C has a DG'° of –20 kJ/mol at 25° C.  Starting under standard conditions, one can predict that:
TLS Online TPP Program

#Question id: 4139

#Section 3: Genetics, Cellular and Molecular Biology

Which one of the following statements about the elongation phase of protein synthesis is true?
TLS Online TPP Program

#Question id: 15249

#Section 6: Plant, Animal and Microbial Biotechnology

Halophiles have adapted so completely to ____________ conditions that they require high levels of ___________ to grow.
TLS Online TPP Program

#Question id: 3352

#Section 3: Genetics, Cellular and Molecular Biology

The kind of natural selection in A and B are
TLS Online TPP Program

#Question id: 3334

#Section 3: Genetics, Cellular and Molecular Biology

Red hair is a dominant trait in human. In a randomly mating population in Hardy-Weinberg equilibrium approximately 91% of individuals are red- haired. What is the frequency of the recessive allele?