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TLS Online TPP Program

#Question id: 15604

The bacteria which cause septicaemia are fast becoming resistant to the antibiotics used for controlling them. Which one of the following explanations fits best?

#SCPH06 I Botany
  1. Each and every individual bacterium, in order to survive, develops a resistance to the antibiotic when exposed to it, and passes that resistance on to future generations.
  2. Only some bacteria, in order to survive, develop a resistance to the antibiotic when exposed to it, and pass that resistance on to future generations.
  3. A few bacteria have a natural heritable resistance to the antibiotic, so they survive when exposed to it, and pass that resistance on to future generations.
  4. All the bacteria have a natural heritable resistance to the antibiotic, so they survive when exposed to it, and pass that resistance on to future generations
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TLS Online TPP Program

#Question id: 2626

#SCPH05 I Biotechnology

lac operator is made up of
TLS Online TPP Program

#Question id: 334

#SCPH06 I Botany

Which of the following statements about hydrogen bonding is not true?
TLS Online TPP Program

#Question id: 1728

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

Which of the following is characteristic of B- but not T-cells?
TLS Online TPP Program

#Question id: 15584

#SCPH05 I Biotechnology

Increasing the agitation in a reactor increases oxygen transfer primarily because:
TLS Online TPP Program

#Question id: 12728

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

Name the type of RNA which folds up to give a cloverleaf secondary structure.