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TLS Online TPP Program

#Question id: 3869

Which one of the following statements about E. coli RNA polymerase (core enzyme) is false?

#Unit 3. Fundamental Processes

  1. It can start new chains de novo or elongate old ones.

  2. It has no catalytic activity unless the sigma factor is bound.

  3. It uses nucleoside 5'-triphosphates as substrates.

  4. Its activity is blocked by rifampicin.

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TLS Online TPP Program

#Question id: 23250

#Unit 13. Methods in Biology

In presence of ATP luciferase-mediated conversion of luciferin into which compound?
TLS Online TPP Program

#Question id: 11582

#Unit 7. System Physiology – Animal

Following a stressful stimulus, the fight-or-flight response will cause ________.
TLS Online TPP Program

#Question id: 19876

#Unit 13. Methods in Biology

Functions perform by restriction endonuclease is__
a) Cleaving phosphodiester bond
b) Methylation on DNA to perform restriction
c) Cleaving the covalent bond
d) Modify the host DNA sequence to prevent restriction
TLS Online TPP Program

#Question id: 10175

#Unit 6. System Physiology – Plant

if you take a plant that developed indoors and transfer it outdoors; after some time, if it is the right type of plant what will happened?
TLS Online TPP Program

#Question id: 3256

#Unit 11. Evolution and Behavior

There are three alleles, A1, A2, and A3, whose frequencies are equal abundance. According the Hardy-Weinberg equilibrium