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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?

#12. Applied Biology
  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: 10952

#7. System Physiology – Animal

Which of the following blood units carries the least risks for inducing an immediate transfusion reaction into a B+ (B, rhesus positive) recipient?
TLS Online TPP Program

#Question id: 6964

#5. Developmental Biology

If embryos are disaggregated with chemicals or proteases, and the individual cells are mixed together in culture, what will happen?
TLS Online TPP Program

#Question id: 4945

#11. Evolution and Behavior

Which is a defining characteristic that all protobionts had in common?
TLS Online TPP Program

#Question id: 776

#1. Molecules and their Interaction Relevant to Biology

The type of silencing involved in miRNA is:
TLS Online TPP Program

#Question id: 19365

#13. Methods in Biology

Which vectors carry the longest foreign DNA fragments?