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TLS Online TPP Program

#Question id: 4337

Which of the following conditions is most likely to cause the lactose operon to be transcribed?

#SCPH05 I Biotechnology

  1. There is more glucose in the cell than lactose.

  2. There is glucose but no lactose in the cell.

  3. The cyclic AMP and lactose levels are both high within the cell.

  4. The cAMP level is high and the lactose level is low.

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TLS Online TPP Program

#Question id: 8716

#SCPH05 I Biotechnology

The most important feature that permits a gene to act as a molecular clock is ________.
TLS Online TPP Program

#Question id: 1575

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

CpG unmethylated dinucleotides recognize by
TLS Online TPP Program

#Question id: 662

#SCPH06 I Botany

________ received a Nobel Prize in 1964 for determining the structure of vitamin B12. He/she also solved the structure of penicillin in 1947 and developed many techniques used in the study of large proteins.
TLS Online TPP Program

#Question id: 11187

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

Refer to the following graph of an action potential to answer the question.



The membrane's permeability to sodium ions is greatest at label ________.
TLS Online TPP Program

#Question id: 407

#SCPH01 Biochemistry

The reaction A + B -> C has a DG'° of –20 kJ/mol at 25° C.  Starting under standard conditions, one can predict that: