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TLS Online TPP Program

#Question id: 4322

If a particular operon encodes enzymes for making an essential amino acid and is regulated like the trp operon, then

#Molecular Biology

  1. the amino acid inactivates the repressor.

  2. the repressor is active in the absence of the amino acid.

  3. the amino acid acts as a corepressor.

  4. the amino acid turns on transcription of the operon.

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TLS Online TPP Program

#Question id: 5343

#Human Biology

 Dosage Compensation in case of mammal is result in
TLS Online TPP Program

#Question id: 11127

#Human Biology

As the receptor potential rises higher above threshold, which of the following best characterizes the new frequency of action potentials?
TLS Online TPP Program

#Question id: 11128

#Human Biology

Inhibition of pain signals by tactile stimulation of a skin surface involves which of the following selections?
TLS Online TPP Program

#Question id: 11135

#Human Biology

The three stages of information processing in animals include ________.
TLS Online TPP Program

#Question id: 11136

#Human Biology

Most of the neurons in the human central nervous system are ________.
TLS Online TPP Program

#Question id: 1556

#Human Biology

Which one of these is not a property of Antigen?