For the reaction catalyzed by the enzyme hexokinase: Glucose + ATP → glucose 6-phosphate + ADP the equilibrium constant, Keq, is 7.8 × 10². In living E. coli cells, [ATP] = 5 mM, [ADP] = 0.5 mM, [glucose] = 2 mM, and [glucose 6-phosphate] = 1 mM. Which of the following conclusions made on the basis of the above calculations is incorrect?

TLS Online TPP Program

#Question id: 11331

#SCPH06 I Botany

Based on the intermediate disturbance hypothesis, a community’s species diversity is increased by

TLS Online TPP Program

#Question id: 15637

#SCPH06 I Botany

You have isolated two mutations in the Lac operon that cause constitutive expression of Lac genes. You designate these mutants Lac1– and Lac2–. Making use of an F' that carries the Lac operon with the LacY gene mutated, you construct strains that you test for both ß-galactosidase activity and Lac permease activity with results shown below.

     

Classify each mutation as dominant or recessive and as cis- or trans-acting, giving the experimental result that allows you to arrive at each conclusion. Finally, deduce what type of Lac mutation best fits the properties of Lac 1– and of Lac 2–.

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#Question id: 3430

#SCPH06 I Botany

The proximate causes of behavior are interactions with the environment, but behavior is ultimately shaped by

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#Question id: 4127

#SCPH28 | Zoology

Which one of the following statements about ribosomes is true?

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#Question id: 11456

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

During an auditory transduction, ion flow varies across the ________.