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TLS Online TPP Program

#Question id: 5760

The fluctuation test of Luria and Delbruck (studying resistance to bacteriophge T1 infection) established that

#SCPH28 | Zoology

  1. T1 phage was a mutagen.

  2. Mutations could arise prior to the time they were selected

  3. The mutation rate varies greatly from experiment to experiment.

  4. In E. coli the number of mutants per clone was relatively constant.

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TLS Online TPP Program

#Question id: 1102

#SCPH06 I Botany

Caffeine is an inhibitor of phosphodiesterase. Therefore, the cells of a person who has recently consumed coffee would have increased levels of which of the following molecules?
TLS Online TPP Program

#Question id: 17210

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

which one of the following tools can reliably establish an evolutionary link between two proteins and align them even if they share very low degree of sequence similarity?
TLS Online TPP Program

#Question id: 23244

#SCPH06 I Botany

At which position does this piperidine cleaves?
TLS Online TPP Program

#Question id: 8853

#SCPH28 | Zoology

Which of the following is correctly associated with sponges?
TLS Online TPP Program

#Question id: 10985

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

What is the membrane potential (threshold level) at which the S-A node discharges?