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TLS Online TPP Program

#Question id: 2617

According role of regulatory proteins, RNA polymerase and one or more promoter elements, mostly three levels of transcription are there, choose correct one

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

  1. RNA polymerase occasionally binds the promoter spontaneously – No transcription

  2. Binding of the repressor to the operator- Basal level

  3. If both the repressor and activator are present and functional, the action of the repressor typically overcomes that of the activator - Activated level

  4. A & B both are correct

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TLS Online TPP Program

#Question id: 11065

#SCPH28 | Zoology

A liquid-ventilated lung compared to a gas-ventilated lung
TLS Online TPP Program

#Question id: 16390

#SCPH28 | Zoology

What is the effect of aldosterone on blood pressure during stress?
TLS Online TPP Program

#Question id: 4342

#SCPH06 I Botany

Suppose an experimenter becomes proficient with a technique that allows her to move DNA sequences within a prokaryotic genome. If a researcher moves the operator to the far end of the operon, past the transacetylase (lacA) gene, which of the following processes would likely occur when the cell is exposed to lactose?
TLS Online TPP Program

#Question id: 4587

#SCPH06 I Botany

Which one of the following statements best defines artificial selection?
TLS Online TPP Program

#Question id: 403

#SCPH28 | Zoology

For the reaction A -> B, DG'° = –60 kJ/mol.  The reaction is started with 10 mmol of A; no B is initially present.  After 24 hours, analysis reveals the presence of 2 mmol of B, 8 mmol of A. Which is the most likely explanation?