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TLS Online TPP Program

#Question id: 4346

Which of the following results would occur if the repressor of an inducible operon were mutated so that it could not bind the operator?

#SCPH06 I Botany

  1. the irreversible binding of the repressor to the promoter

  2. the reduced transcription of the operon's genes

  3. the continuous transcription of the operon's genes

  4. the overproduction of cAMP receptor protein (CRP)

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TLS Online TPP Program

#Question id: 12751

#SCPH06 I Botany

A DNA sample has a 260/280 ratio of 2. Which of the following treatments can be used to get a better purity of DNA sample?
TLS Online TPP Program

#Question id: 384

#SCPH05 I Biotechnology

A solution was prepared by dissolving 0.02 moles of acetic acid (HOAc; pKa = 4.8) in water to give 1 liter of solution. What is the pH? To this solution was then added 0.008 moles of concentrated sodium hydroxide (NaOH). What is the new pH? (In this problem, you may ignore changes in volume due to the addition of NaOH).
TLS Online TPP Program

#Question id: 1439

#SCPH28 | Zoology

Indirect-acting carcinogens are those that:
TLS Online TPP Program

#Question id: 19892

#SCPH06 I Botany

Which one of the following sensors detects the nearby objects?
TLS Online TPP Program

#Question id: 14347

#SCPH05 I Biotechnology

The K used in the equation for X10=2.303/K depends upon