Question

Question #f8f0d

Answer 1

Resistance to drugs and vaccines.

Explanation:

mutations in the DNA of the bacteria causes the formation of new forms of bacteria.

Scientist found that " bacteria had dropped from its chromosomes a gene called `katG` which codes for the production of two enzymes catalase and peroxidase. # page 260 The beak of the Finch.

By losing DNA the mutation allows the bacteria to adapt to the hostile environment created by the antibiotics.

'apparently the cells had paid a price to defend themselves from the drug. They had made an evolutionary trade-off giving up part of their own adaptive equipment for the sake of survival. The bacillus got rid of an Achilles heel by evolving a heel-less foot. "(previously quoted)