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TLS Online TPP Program

#Question id: 20330

What does the LuxR gene do?

#Unit 4. Cell Communication and Cell Signaling
  1. an repressor protein that is terminate the transcription when it is in a complex with its ligand AHL
  2. an activator protein that is only able to turn on transcription when it is in a complex with its ligand S-adenosylmethionine (SAM)
  3. an activator protein that is only able to turn on transcription when it is in a complex with its ligand AHL
  4. an repressor protein that is terminate the transcription when it is in a complex with its ligand S-adenosylmethionine (SAM)
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TLS Online TPP Program

#Question id: 23595

#Unit 1. Molecules and their Interaction Relevant to Biology

If A + B means A is the brother of B; A%B means A is the father of B and A × means A is the sister of B. Which of the following means M is the uncle of P?
TLS Online TPP Program

#Question id: 23596

#Unit 1. Molecules and their Interaction Relevant to Biology

Pointing to Varman, Madhav said, “I am the only son of one of the sons of his father.” How is Varman related to Madhav?
TLS Online TPP Program

#Question id: 23597

#Unit 1. Molecules and their Interaction Relevant to Biology

Introducing a woman, Shashank said, “She is the mother of the only daughter of my son.” How that woman is related to Shashank?
TLS Online TPP Program

#Question id: 23598

#Unit 1. Molecules and their Interaction Relevant to Biology

If A + B means B is the brother of A; A ×B means B is the husband of A; A −B means A is the mother of B and A%B means A is the father of B, which of the following relations shows that Q is the grandmother of T?
TLS Online TPP Program

#Question id: 22017

#Unit 1. Molecules and their Interaction Relevant to Biology

The Hanes plot (devised by Charles Hanes) obtained by using Lineweaver-Burk equation by 
TLS Online TPP Program

#Question id: 653

#Unit 1. Molecules and their Interaction Relevant to Biology

For the enzyme-catalyzed reaction S ~ P, Keq = 5, which of the following curves best represents the change in [S] that occurs with time when S is added to a solution containing the appropriate enzyme?