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TLS Online TPP Program

#Question id: 4336

Which of the following processes would result from a mutation that deactivates a regulatory gene of a repressible operon in an E. coli cell?

#SCPH28 | Zoology

  1. continuous transcription of the structural gene controlled by that regulator

  2. complete inhibition of transcription of the structural gene controlled by that regulator

  3. irreversible binding of the repressor to the operator

  4. continuous translation of the mRNA because of alteration of its structure

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TLS Online TPP Program

#Question id: 11018

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

A 50-year-old man has a blood pressure of 140/85 and weighs 200 lb. He reports that he is not feeling well, his EKG has no P-waves, he has a heart rate of 46, and the QRS complexes occur regularly. What is his likely condition?
TLS Online TPP Program

#Question id: 660

#SCPH06 I Botany

Computers are used to advance the understanding of three dimensional protein structure by
TLS Online TPP Program

#Question id: 673

#SCPH28 | Zoology

How many complete turns are there in an ideal α-helix that contains 15 amino acids and has a pitch of 0.54 nm and a rise of 0.15 nm?
TLS Online TPP Program

#Question id: 5561

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

In sea urchins, the "fast block" and the longer lasting "slow block" to polyspermy, respectively, are ________.
TLS Online TPP Program

#Question id: 18700

#SCPH01 Biochemistry

A student adds Taq Polymerase, nucleotides, and primer to a test tube. What procedure are they most likely going to do next?