Bacteria and antibitiotics

Question 1

Explain how bacteria become resistant through gene transmission

Answer 1

1. Resistance allele;
2. On plasmid;
3. Spread by horizontal transmission;
4. Involves conjugation

Question 2

Describe 5 steps to transfer bacteria from a bottle into a Petri dish

Answer 2

1. Wash hands
2. Flame-sterilise the inoculating loop
3. Flame the neck of the culture tube containing the bacteria
4. Streak the plate with the inoculating loop QUICKLY
5. Only lift lid of Petri dish a small amount